Аналог postman для windows

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Apidog – комплексная платформа для разработки API

Apidog – это многофункциональная платформа, которая сочетает в себе тестирование, проектирование, документацию и мокирование API. Предлагает щедрый бесплатный план.

Особенности и возможности:

  • Неограниченные запуски коллекций в бесплатном плане.
  • Интеграция проектирования и тестирования API в едином интерфейсе.
  • Настраиваемые серверы мокирования без необходимости перехода на платные тарифы.
  • Совместная работа в реальном времени с возможностью легко делиться коллекциями и документацией.
  • Есть браузерный вариант.

Почему Apidog лучше Postman:

  • Нет ограничений на запуски коллекций.
  • Удобный интерфейс и низкий порог входа.
  • Доступные платные тарифы.
Apidog можно установить на комп или использовать в браузере

Apidog можно установить на комп или использовать в браузере

Insomnia – простой и мощный инструмент для тестирования API

Insomnia – это простой в использовании инструмент с поддержкой REST, GraphQL, WebSockets, SSE и gRPC API. Он привлекает внимание разработчиков своей минималистичностью и быстрой работой.

Особенности и возможности:

  • Поддержка GraphQL для выполнения запросов и мутаций в реальном времени.
  • Удобное управление окружениями (разработка, тестирование, продакшн).
  • Плагинная экосистема, позволяющая расширять функциональность.
  • Настраиваемые рабочие процессы для упрощения тестирования API.

Почему Insomnia лучше Postman:

  • Простота интерфейса и меньшее количество функций делает его более доступным.
  • Открытый исходный код и активное сообщество разработчиков.
  • Встроенная поддержка GraphQL, которая делает работу с ним более простой и естественной, чем в Postman.
Insomnia работает на Linux, Windows и macOS

Insomnia работает на Linux, Windows и macOS

🧪 Библиотека тестировщика

Hoppscotch – легкий и быстрый инструмент для разработки API

Hoppscotch (ранее Postwoman) – это браузерный инструмент, разработанный в качестве быстрой, простой и опенсорсной альтернативы Postman.

Особенности и возможности:

  • Полностью браузерное решение, не требующее установки.
  • Совместная работа в реальном времени, аналогичная Postman, но бесплатно.
  • Быстрая обработка запросов благодаря легковесной архитектуре.
  • Открытый исходный код с возможностью кастомизации.

Почему Hoppscotch лучше Postman:

  • Опенсорсный.
  • Работает намного быстрее.
  • Нет необходимости в установке – доступен с любого устройства.
Hoppscotch работает без установки

Hoppscotch работает без установки

Paw – инструмент, разработанный для macOS

Paw – это нативный API-инструмент для macOS, бесшовно интегрирующийся с экосистемой Apple, что делает его отличным выбором для разработчиков на этой платформе.

Особенности и возможности:

  • Глубокая интеграция с macOS, включая поддержку Touch Bar и шорткатов.
  • Использование динамических значений (например, временные метки, UUID) для гибкости тестирования.
  • Расширенные инструменты отладки запросов.
  • Большой выбор всевозможных расширений.
  • Красивый и удобный интерфейс.

Почему Paw лучше Postman:

  • Интеграция с macOS делает его более удобным для пользователей Apple.
  • Более продвинутая отладка запросов.
  • Нативный интерфейс, оптимизированный для macOS.
  • Бесплатный.
Удобный и красивый интерфейс Paw

Удобный и красивый интерфейс Paw

SoapUI – расширенное тестирование API и веб-сервисов

SoapUI – это мощный инструмент, ориентированный на функциональное и нагрузочное тестирование API и веб-сервисов.

Особенности и возможности:

  • Поддержка функционального, нагрузочного и тестирования безопасности API.
  • Автоматизация тестов для упрощения сложных тестов.
  • Продвинутые возможности мокирования API.
  • Расширенные функции для крупных команд, включая интеграцию с CI/CD.

Почему SoapUI лучше Postman:

  • Есть бесплатная опенсорсная версия.
  • Расширенные возможности для тестирования нагрузки и безопасности, которых нет в Postman.
  • Мощные функции автоматизации, снижающие необходимость ручного тестирования.
  • Ориентирован на разработчиков крупных проектов, которым необходимы расширенные инструменты для работы с API.
Бесплатной версии SoapUI достаточно для большинства проектов

Бесплатной версии SoapUI достаточно для большинства проектов

Подведем итоги

Каждая из рассмотренных выше альтернатив предлагает уникальные преимущества, которые могут сделать работу с API проще, быстрее и дешевле. Выбирайте инструмент, исходя из своих предпочтений и особенностей проекта:

  • Apidog – для комплексной разработки и тестирования API.
  • Insomnia – для встроенной поддержки GraphQL и gRPC API.
  • Hoppscotch – для скорости и работы в браузере.
  • Paw – для пользователей macOS.

SoapUI – для расширенного тестирования сложных веб-сервисов.

***

Какой инструмент для разработки API вы предпочитаете и почему? Поделитесь своим опытом!

Updated on

Postman is a popular tool for API development, testing, and managing APIs for QA professionals. However, Postman is a comprehensive tool with complex design, which may not fit teams with more specific needs. In this article, we have listed out 15 best Postman alternatives, their strong features, and pricing plan for you to consider before switching.

16 Best Postman Alternatives (Free & Paid) 

1. Katalon

Katalon logo

Katalon provides an all-in-one testing solution for any type of test project. It supports web, mobile, API, and desktop application testing. For API testing in particular, Katalon supports you throughout the entire API testing lifecycle, from test planning, test creation, to test execution and test reporting for many types of API requests on multiple environments. 

  • API Test Creation: Katalon comes with many codeless test authoring capabilities, including Built-in Keywords, which are readily available code snippets that you can drag and drop to build a full test, and Record-and-Playback, which allows you to record the sequence of your activities, auto-capture test objects, and turn them into a test script. This helps tremendously in creating even the more complex API narratives. Learn more about how it works in Katalon Studio.
  • API Test Organization: all test objects captured are organized in a repository with clear hierarchy. These objects can be reused across a wide variety of environment and scenarios. Via Postman and repo integration, you can easily reuse existing API assets, or consolidate resources for team collaboration.
  • API Test Execution: Katalon gives you access to many web and mobile environments to run your tests on. You can choose to run tests on cloud with Katalon TestCloud or run on your local environment through the CLI with Katalon Runtime Engine, which has many AI-powered features to support API test maintenance.
  • API Test Analysis: after test runs, Katalon generates detailed reports with relevant metrics for you to monitor your efficiency and make data-driven decision. 
  • API Test Planning: integrate with Slack, Microsoft Teams, JIRA, and many collaboration platform for enhanced communication and visibility across teams

Katalon Platform for API Testing and the best Postman alternative

For example, after creating a test project in Katalon Studio, you can click on “Add Web Service Keyword” to generate test steps, which are “Send Request” and Verify Element Property Value» here, then simply drag-and-drop objects from the Object Repository on the left sidebar to define what those test steps include. Instead of writing code, you have constructed a full API test from scratch in seconds. 

The tool is constantly adding in test integration features and improving over time, allowing users to scale up testing projects with confidence. Beside that, it also has a scripting mode for experienced testers, reducing the time it takes for API test creation. It is the perfect Postman alternative for teams of all scale and expertise.

Features:

  • Productive IDE for API test automation, providing code-support features, code inspection, snippets, quick references, dual interface, debugger, and test maintenance features
  • Supports all types of SOAP/1.1, SOAP/1.2, REST, and GraphQL requests
  • Versatile options for testers to work with their API project: Keyword-driven testing or Page Object Model (POM) testing.
  • Tests can be imported from Swagger, WSDL, and Postman
  • Support data-driven testing for better test coverage and efficiency.
  • Test artifacts can be reused across testing projects
  • Diverse integration ecosystem supporting all stages of the STLC with native plugins for CI and DevOps best practices
  • Data driven testing with multiple data sources (e.g. XLS, CSV) and databases supported. Katalon also supports BDD with Cucumber files and native Gherkin editor.
  • Comprehensive reporting and test analytics

Pricing: Katalon offers a Free version to get you started immediately with codeless API, web, mobile app, desktop app test creation and cross-browser test execution. There is also a 30-day free trial for you to experience the full capabilities of Katalon.

Learn More About Katalon API Testing 


2. Bruno

Bruno as Postman alternatives

Bruno emerges as a fast and innovative open-source API client aimed at challenging the norms set by established tools like Postman and Insomnia. 

What sets Bruno apart is its unique approach of storing API collections directly on your local filesystem, using a plain text markup language called Bru for managing API requests. This approach not only simplifies storage and version control but also enhances accessibility and transparency in managing API documentation and tests.

Unlike cloud-based tools, Bruno operates offline-only, ensuring maximum data privacy by keeping all collections securely on the user’s device. This commitment to data security is a key feature for users who prioritize privacy and control over their API testing environments.

Features:

  • Filesystem storage for API collections
  • Uses plain text markup language (Bru) for API requests
  • Seamless integration with Git and other version control systems
  • Open-source with customization opportunities

Pricing: Open-source

Website: UseBruno


3. HTTPie

HTTPie as one of the top Postman alternatives

HTTPie is a command-line interface (CLI) HTTP client that allows users to send requests to web servers and APIs using a simple and intuitive syntax. It is similar to the popular tool cURL but offers a more user-friendly and intuitive experience. More than just API testing, HTTPie can be used for API debugging, web page scraping, and interacting with RESTful services.

HTTPie postman alternative

Features:

  • Formatted and colorized terminal output, which can be customized to include/exclude certain detail
  • Built-in JSON support
  • Forms and files uploads
  • Arbitrary request data
  • Custom headers
  • Persistent sessions
  • Wget-like downloads
  • Linux, macOS, Windows, and FreeBSD support

Pricing: Open-source

Website: HTTPie


4. cURL

cURL as one of the best Postman alternatives

cURL is a command-line tool for transferring data with URLs. It supports various protocols and is widely used for fetching or sending data to servers via HTTP, HTTPS, FTP, and more. 

Features:

  • Command-Line Interface: Operates entirely from the command line, making it scriptable and suitable for automation, ideal for integrating into CI/CD pipelines and testing workflows.
  • SSL/TLS Certificate Verification: Supports secure connections with built-in SSL certificate validation, ensuring secure API interactions and verifying server authenticity.
  • Platform Compatibility: Works seamlessly across multiple platforms including Windows, macOS, Linux, and more, ensuring consistency in API testing environments.
  • Extensive Functionality via libcurl: Offers advanced features through the libcurl library, such as file transfers, proxy support, authentication mechanisms, and comprehensive HTTP method handling.
  • Integration and Customization: Integrates with various programming languages and frameworks via bindings, allowing for extensive customization and integration into existing development ecosystems.

Pricing: Free

Website: cURL


5. Swagger

Swagger an alternative for Postman

Swagger is another powerful alternative to Postman with well-organized API documentation features. Swagger comes with smart error feedback and syntax auto-completion within API Editor, enhancing the API design experience. As developers design the API, Swagger will highlight any inconsistencies in the design compared with established standards. A library of reusable components can be built and shared across multiple APIs, reducing the amount of code to be written compared to Postman.

The Swagger Petstore is a sample API provided by Swagger/OpenAPI to showcase their capabilities. It is a RESTful API that manages pet data, allowing operations like creating, reading, updating, and deleting pets using HTTP methods such as GET, POST, PUT, and DELETE.

Swagger PET API documentation

Features :

  • Powerful API Design toolset
  • API mocking to simulate the API behavior before it is built, which is useful for early API testing or prototyping
  • Swagger can be seamlessly integrated into the CI/CD pipeline
  • Swagger Codegen can generate server stubs and client SDKs for any API
  • Swagger UI is highly customizable to tailor the API documentation to the testers’ specific needs
  • Collaboration features for teams
  • Support multiple API specs, including OpenAI, Swagger 2.0, and RAML

Pricing: Swagger offers flexible pricing from Free for Individual user to $95 annually for Team plan (3 users)

Website: Swagger


6. Hoppscotch

Hoppscotch as one of the best Postman alternatives

Hopscotch is an open-source API development and testing tool that can be used as a Postman alternative. It has a user-friendly interface to test and debug APIs. It is available as a web app, desktop app, browser extension, and can be used on Windows, macOS, and Linux. Hoppscotch supports REST, GraphQL, WebSocket, and other protocols.

Hoppscotch interface for API testing

Features:

  • Free, lightweight, and immediately accessible — no need to create an account
  • Clean interface to quickly create, test, and debug API requests
  • Real-time request/response data
  • Support a wide range of HTTP request types, including GET, POST, PUT, DELETE, PATCH, and OPTIONS
  • Customizable headers and parameters to test many different scenarios
  • JSON and form data support
  • Automatic response validation based on the expected status codes and data formats
  • Request organization into collections for easier management
  • Code snippets
  • Request import/export functionality
  • Actively developed and maintained

Pricing: Free 

Website: Hoppscotch

Website: Hoppscotch


7. JMeter

Apache JMeter as one of the regression testing tool for performance testing

JMeter was an open-source performance testing tool primarily used to test web apps, APIs, and other network protocols (FTP, SMTP, etc). Most notably, it provides a wide range of functionalities tailored for API testing, such as HTTP requests, parsing responses, and asserting response data. 

To test APIs using JMeter, you need to set up a Test Plan in JMeter. This involves adding a Thread Group, which determines the number of virtual users and how they are distributed over time, and an HTTP Request, which specifies the details of the API request such as the server, path, method, parameters, and headers. Optional assertions can be added to validate the response. 

API testing using JMeter

Once the Test Plan is configured, you can run the test and monitor the results using JMeter’s listeners. By adding multiple Thread Groups and HTTP Requests, you can create more complex test scenarios. Remember to save your Test Plan and ensure that you have the necessary dependencies and plugins for your API protocols and authentication mechanisms.  

Features:

  • Full-featured IDE allowing teams to record interactions with web browsers and/or native apps using the HTTP(S) Test Script Recorder
  • Effortlessly build, customize, and debug test plan on a well-designed UI
  • Offers a Command Line Interface (CLI) allowing testers to run automated API tests in a headless mode
  • Automatically identifies and extracts dynamic values from many data formats (HTML, JSON, XML, and stores them in variables
  • Dashboard for visualization, aggregate and raw data report generation

Pricing: JMeter is open-source and free.

Website: Apache JMeter


8. SoapUI

SoapUI.webp

SoapUI is an API testing tool for both SOAP and REST testing. It covers the creation and execution of automated functional, regression, compliance, and load tests on Web API. Apart from functional testing features, SoapUI also offers security and load testing features. Users can leverage SoapUI’s easy scripting features: drag and drop or point and click.

With a simple and easy-to-use interface, testing with SoapUI is not too much of a challenge for users without a technical background. Testers and businesses can choose to work with the open-source or the paid version depending on their needs.

In comparison with Postman, SoapUI provides a wider range of features for API testing needs, such as SOAP testing, API discovery, automated assertion creation, templated data insertion, and open-source standards. Postman also lacks load testing and security testing capabilities that are available when testing with SoapUI.

Features:

  • Support a wider range of protocols, including HTTP, HTTPS, JMS, AMF, JDBC, and more
  • Provides data-driven testing, which is not supported by Postman
  • Detailed reporting and analytics capabilities in various formats
  • Support the creation of automated functional tests to validate the behavior of SOAP, REST, and other web services
  • Support command line interface
  • Scripts can be reused across projects
  • SOAPUI allows for the creation of mock services that simulate the behavior of a real service, allowing for testing in isolation.

Pricing: SoapUI is a free open-source tool


9. TestSigma

testsigma.png

TestSigma is an interesting Postman alternative. It requires no coding and no setup to get started. TestSigma gives a high level of customization to API call sequences, matching the application workflow. API dataset can be stored as “parameters”, which can be populated across many tests, so testers don’t have to modify test scripts every time they run.

Test Sigma also offers different comparison modes that allow developers to choose the level of rigidity (Strict, Lenient, Non-extensible, Strict Order, etc.) for their requirements and validate API responses with varying degrees of comparison. 

TestSigma interface as a Postman alternative

Features:

  • Codeless API test creation
  • End-to-end test automation for both API and UI testing
  • Easy integration with Dev and QA toolchain

Pricing: TestSigma offers three packages: community, cloud, and enterprise. Community is open-source and free to use, while cloud and enterprise packages are paid.


10. ReadyAPI

SmartBear ReadyAPI as a Postman alternative

ReadyAPI is a comprehensive API testing tool developed by SmartBear that allows testers and developers to perform functional, performance, and security testing of APIs. It provides a user-friendly interface for designing, testing, and generating reports on API tests. ReadyAPI is designed to support both RESTful and SOAP APIs and can be used to test APIs developed in various programming languages.

Features:

  • Low-code API functional, security, and performance testing 
  • Support a wide range of API type, including SOAP, REST, and cutting-edge use cases levering MQTT
  • Point-and-click assertion logic insertion
  • Diverse integrations for continuous integration and deployment
  • Comprehensive reporting and analytics with up-to-date testing metrics, exportable as JUnit-style HTML reports, CSV, and more

Pricing: ReadyAPI for API Testing is available from $895/license, billed annually. The API Performance Module starts at $7308/license and API Virtualization Model at $1374/license.  


11. Assertible

Assertible.webp

Assertible is a cloud-based testing and monitoring tool designed to help developers and QA teams automate API testing and monitoring. The tool provides a range of features that help teams ensure their APIs are functional, secure, and reliable. 

As a Postman alternative, Assertible offers advanced test automation features, including support for JSON Schema validation, parameterized testing, and assertion chaining for wider test coverage. 

Assertible API testing result page

Features:

  • Support dynamic variables, conditional logic, and webhooks, making it easy to test complex API workflows
  • Run automated tests as part of your continuous integration and delivery pipeline
  • Codeless API monitoring allows testers with minimal coding experience to test APIs, manage schedules, and check up on web service failures
  • Real-time alerts via emails, SMS, or Slack when your API fails
  • Collaborated API testing and monitoring
  • Comprehensive reporting on API performance, response rate, error time, and more
  • Integration with GitHub, Slack, Zapier, and more
  • OpenAPI support

Pricing: Assertible offers a free plan with basic features, and its paid plans start at $50/month.      

Website: Assertible


12. Paw

Alternative to Postman: Paw

Paw is a macOS native application for API testing and development. It allows users to easily make HTTP requests, create and share API documentation, and mock APIs. Paw supports a wide range of HTTP protocols and authentication methods, as well as allowing users to write custom scripts and plugins to extend its functionality. 

Paw promotes teamwork. It allows developers, testers, and other stakeholders to contribute to the API testing activities with real-time updates on the status. 

Paw Interface for API testing

Features:

  • Highly compatible with macOS
  • Full-featured visual editor and HTTP toolset
  • Support JSON schema and is fully compliant with Swagger and RAML descriptions
  • Support both OAuth 1.0 and 2.0
  • Built-in mock server
  • Code generation for a variety of languages, including Objective-C, Swift, and JavaScript
  • Automatically generate API documentation from API requests

Pricing: There is a Free for Personal and Professional use, then its paid plan starts at $60/month for 6 users


13. Karate Labs

KarateLabs as one of the best Postman alternatives

Karate is an automation testing framework written in Java that supports API automation, API mocking, performance testing, and UI testing. Karate’s syntax is easy to understand for non-programmers or testers who are new to API testing. It generates HTML-based test reports that provide a comprehensive view of test results, including detailed information about test steps, HTTP requests and responses, and assertion failures.

Features to Highlight:
  • Low learning curve
  • Native support for Gherkin syntax
  • Built-in HTTP client that can be used to make REST API requests without the need for additional libraries or tools
  • Highly extensible with custom Java code

Pricing: Free open-source framework

Website: Karate


14. Tricentis Tosca

Tricentis Trosca.png

Tricentis Tosca is an enterprise-level software testing tool designed to automate end-to-end functional testing, integration testing, and regression testing of applications. 

Tosca offers a model-based approach to testing, which allows users to create and maintain test cases at a higher level of abstraction, using visual representations of the application’s business processes.

For API testing specifically, Tricentis offers the Tosca API Scan Module. It allows users to create test cases using simple drag-and-drop actions, making it easy to design complex test scenarios without writing a single line of code. API and UI tests can be combined to create truly automated end-to-end test scenarios spanning across web, mobile, SAP, and more. 

Features:

  • End-to-end API testing across a wide range of environments
  • Automatically generate test cases from API documentation
  • Scriptless test creation for reduced learning curve, higher clarity, transparency, and enhance collaboration
  • Extensive API testing capabilities, supporting popular protocols and formats
  • Scalable along with your API testing projects
  • Automatically analyzes the captured requests and responses, extracts the relevant data, and converts them into business-readable test cases that accurately represent the API’s behavior

Pricing: Being an enterprise-level tool, its pricing is only available upon request.


15. LoadNinja

LoadNinja as a good Postman alternative

LoadNinja is a cloud-based load testing tool that helps testing web applications by generating virtual user traffic. Testers can simulate user traffic from different geographical locations, browsers, and devices to identify potential bottlenecks and performance issues in the application. 

LoadNinja provides a user-friendly web-based interface for creating complex API test scenarios. You can easily generate an authentication request and re-use the token for subsequent requests without having to write any scripts. You can even customize the think time and other parameters to create highly realistic tests.

There is also a machine learning assistant that can detect anomalies automatically. The test results page displays essential statistics such as navigation timings and transactions per second.

Features:

  • InstaPlay Recorder to easily create web and API load tests in minutes, no coding required
  • Browser-based UI for building complex API scenarios for accurate results
  • Cloud-based API Load Testing
  • Integrated performance metrics for actionable insights and root cause analysis
  • Integration into any CI/CD pipeline

Pricing: There is an on-demand plan. The Subscription-based plan starts at $105/month billed annually.


16. Apigee

Apigee as one of the best Postman alternatives for QA teams

Apigee is an excellent Postman alternative. It is Google Cloud’s native API management tool to build, manage, and secure APIs across a wide range of environments, use cases, and scale. 

Apigee Edge Platform is the core component of Apigee, providing a range of tools and services for managing the entire lifecycle of an API. There is also a set of policies and access controls to secure the API, a traffic management system to control and optimize API traffic, and a set of analytics and monitoring tools to track API usage, performance, and other key metrics.

Another key component of Apigee is the Developer Portal, which enables organizations to publish and manage their APIs, providing documentation, SDKs, and other resources to help developers easily discover and use the APIs.

Apigee API testing interface

Features:

  • Support multiple programming languages and frameworks to perform API testing
  • Security and access control to protect sensitive data from unauthorized access.
  • Real-time analytics
  • Third-party tool integrations
  • Automatic scaling, load balancing, and failover, ensuring that APIs are always available and responsive.

Pricing: You must contact Apigee for a quote, but they do offer a free trial.

Website: Apigee


How To Select The Right Postman Alternative

How Postman become top of choice for API testing and top Postman alternatives

When selecting the right alternative to Postman, there are a few factors to consider. 

  1. You need to carefully evaluate the specific needs of your API testing and development workflow to determine if you require features like automated testing, collaboration capabilities, CI/CD integration, or advanced reporting. 
  2. Consider the ease of use and learning curve associated with the alternative tool. 
  3. Look for a tool that offers a user-friendly interface and intuitive navigation. 
  4. Compatibility with various platforms, operating systems, and API protocols is also extremely crucial for seamless integration into your existing tech stack.

Most importantly, it is about understanding the strong and weak points of Postman, then compare them with your tool of consideration.

Postman works on all major platforms, including Windows, macOS, and Linux. Individual developers can use Postman’s free version for their basic and simple requirements, and businesses can look for more in their commercial versions. Now identified as a collaboration platform for API development, the tool aims to simplify building an API and streamline team collaboration to make APIs creation better and faster.

The Advantages of Postman  

  • Ease of use: A new user to Postman only has to sign up, download the tool, and log in to their account to get started
  • Simplified API: Postman users can begin their API journey quickly and effectively using Postman’s comprehensive platform and wide support for all possible HTTP methods.
  • Robust testing capabilities: Postman supports multiple testing environments, test checkpoints, and scheduling options.
  • Integration and collaboration: Postman Workspace is dedicated to real-time collaboration between teams with built-in version control. The tool integration ecosystem is growing, with major names constantly being added.

The Limitations of Postman  

Although Postman has proven its capabilities in providing a holistic experience for developers to perform testing with their web services, it still falls short in several criteria. Most significantly, Postman is ideal for manual testing needs while the world is turning its focus more toward continuous testing toolsd.

Here’s a closer look at Postman’s limitations for automated testing demands:

  • Postman is not built for automated test validation, making it hard to ensure stability in performance.
  • Reporting is only available in Enterprise plan
  • Low script reusability leading to duplicate effort for any new API testing project
  • Lack of test maintenance features
  • It lacks support for CI/CD integrations and shift-left or Agile processes to meet QA teams’ demand since it was originally designed as a standalone tool for developers and testers, rather than as part of a larger DevOps toolchain

Indeed Postman is a popular tool for API testing and development, but there are many Postman alternatives available that better suit your needs depending on your specific use case. When exploring these options, make sure to weigh their pros and cons to find the best fit for your team and improve your API testing and development workflow.

Postman alternatives

Previously Postman was an effective tool for creating and testing REST API.
Currently, this tool shows very poor performance and consumes too much of your computer’s resources.
Also, recently it is impossible to use the application without an account.
These Postman alternatives offer distinctive features and
capabilities, catering to various aspects of the testing process.

In this article, we will delve into these Postman alternatives, examining their
functionalities, advantages, and potential areas of specialization. This comparative analysis aims
to provide a comprehensive understanding of the available choices, enabling you to decide on the most
suitable API testing tool for your particular requirements.

NativeRest

NativeRest can be used without internet connection. You decide to use only local workspaces
or additionally create cloud workspaces. You can import data from other REST clients such as Postman,
Insomnia. You can migrate without loss earlier created collections, environments and variables.

NativeRest is a native REST API client for Windows, macOS and Linux.
Build, debug and test APIs has been made significantly quicker and more user-friendly with the NativeRest
application. It boasts an impressive 100x increase in efficiency compared to Postman or Insomnia,
ensuring a seamless API development experience.

NativeRest is Best Postman Alternative for REST API

The Key Features of NativeRest

High-performance and memory efficient

NativeRest desktop application is not using Electron, Chromium, Node.js and JavaScript
frameworks. NativeRest is 100% native application, that is compiled for different platforms. It starts fast,
uses less memory and CPU. Some popular Electron-based REST clients use up to 100 times more RAM.

Working in offline mode

NativeRest can be used without internet connection. You decide to use only local
workspaces or additionally create cloud workspaces. When using local workspaces, all your collections,
environments, requests will be stored only on your computer. When working as a team, you can create cloud
workspaces without any problems.

Preconfigured proxy server

Use high-performance preconfigured proxy server from NativeRest. A proxy server acts
as an intermediary between the user and the web server. Proxy servers use a different IP address on behalf
of the user, concealing the user’s real address from web servers. You can also configure NativeRest to use
a custom proxy configuration when sending requests.

Simple testing

NativeRest provides a way to easily test your API. Use single line tests to check
status, time, body, headers, cookies of response. You can use a list of commonly-used test code snippets
to write your tests. Snippets are available in Test Examples window.

Manage multiple environments

Use system variables for a seamless development. Define workspace variables like
authentication credentials, tokens, or session IDs for re-use globally or within a public production
workflow.

Generating code snippets

You can generate code snippets in various languages and frameworks within NativeRest.
Over fifteen different languages: C, C#, cURL, Go, HTTP, Java, JavaScript, Kotlin, Node.js, PHP, PowerShell,
Python, Ruby, Shell, Swift, and more.

Full-featured portable version

NativeRest is available in a portable version as well. The portable version is
distributed as a single executable file and does not require administrator privileges. All features are
available in the portable version. The file size is approximately 8 MB.

Import and export data

You can import data from other REST clients such as Postman, Insomnia. You can migrate
without loss earlier created collections, environments and variables. It also supports data export. The
NativeRest export file format is fully compatible with the most popular REST API clients.

Multilingual User Interface

NativeRest is a multilingual HTTP client that supports multiple languages.
Currently, it supports 10 languages, including English, Spanish, Portuguese, French, German, Russian,
Bulgarian, Simplified Chinese, Traditional Chinese, Japanese. NativeRest uses system language by
default. You can change the language in settings without restarting app.

Light and dark themes

NativeRest supports Light and Dark themes for all components and windows. NativeRest
uses system theme by default, but you can manually choose a Light or Dark theme in the Settings window.
Also, the dark theme is supported by the installer of the NativeRest.

Download NativeRest

Apidog

Compared to Postman, Apidog is the best alternative API tool. It is an All-in-One API tool for API design,
documentation, debugging, mock, and test. With Apidog, you can design and debug APIs faster and more
efficiently, while generating documentation, mock data, and tests automatically.

Apidog an integrated platform for API design, debugging, development, mock, and testing

In addition, Apidog is the best alternative to Postman which functions as a

Chrome extension for API testing and documentation.
It offers a platform for developers to manage their APIs efficiently. Similar to Postman,
Apidog allows users to make API requests, inspect responses, and organize requests into collections.

Apidog is a versatile toolkit that covers the entire API creation process.
It’s like a Swiss Army knife for APIs, helping with design, testing, and more. Here’s what Apidog offers:

The Key Features of Apidog

  • Easy to use: Apidog with clear navigation and visual UI is easy for beginners to get
    started with due to its low entry barrier.
  • Design and Debugging: Apidog lets you design and debug APIs visually,
    with support for JSON Schema.
  • Automated Testing: It can generate tests, validate responses, and help with continuous
    integration. It can automate tasks and keep your API definitions in sync.
  • Documentation: Apidog can generate beautiful documentation for your APIs.
  • Mocking Data: It can create mock data, making testing easier. What Apidog Offers
    for GraphQL Testing: Apidog works well for testing GraphQL APIs too.
  • Integration with other tools: Apidog integrates with a range of other tools and
    platforms, including Jenkins and GitHub, which provides flexibility and choice for developers.

Apidog offers a free version with no time limit, you can use all the features
of the professional version for free. However, its more advanced team management features are only
available with a paid subscription.

Download Apidog

SoapUI

SoapUI is an API testing tool for both SOAP and REST testing. It covers the creation and execution of
automated functional, regression, compliance, and load tests on Web API. Apart from functional testing
features, SoapUI also offers security and load testing features. Users can leverage SoapUI’s easy scripting
features: drag and drop or point and click.

SoapUI is open-source Postman alternative

With a simple and easy-to-use interface, testing with SoapUI is not too much of a challenge for users
without a technical background. Testers and businesses can choose to work with the open-source or the paid
version depending on their needs.

In comparison with Postman, SoapUI provides a wider range of features for API testing needs, such as SOAP
testing, API discovery, automated assertion creation, templated data insertion, and open-source standards.
Postman also lacks load testing and security testing capabilities that are available when testing with
SoapUI.

The Key Features of SoapUI

• Support a wider range of protocols, including HTTP, HTTPS, JMS, AMF, JDBC, and more
• Provides data-driven testing, which is not supported by Postman
• Detailed reporting and analytics capabilities in various formats
• Support the creation of automated functional tests to validate the behavior of SOAP, REST, and other web
services
• Support command line interface
• Scripts can be reused across projects
• SOAPUI allows for the creation of mock services that simulate the behavior of a real service, allowing for
testing in isolation

Download SoapUI

HTTPie

HTTPie is a command-line interface (CLI) HTTP client that allows users to send requests to web
servers and APIs using a simple and intuitive syntax. It is similar to the popular tool cURL but offers a
more user-friendly and intuitive experience. More than just API testing, HTTPie can be used for API
debugging, web page scraping, and interacting with RESTful services.

HTTpie command-line Postman alternative

Highlight Features:

• Formatted and colorized terminal output, which can be customized to include/exclude certain detail
• Built-in JSON support
• Forms and files uploads
• Arbitrary request data
• Custom headers
• Persistent sessions
• Wget-like downloads
• Linux, macOS, Windows, and FreeBSD support

Download HTTPie

Paw for Mac

Paw is a macOS native application for API testing and development. It allows users to easily make HTTP
requests, create and share API documentation, and mock APIs. Paw supports a wide range of HTTP protocols
and authentication methods, as well as allowing users to write custom scripts and plugins to extend its
functionality.

Paw promotes teamwork. It allows developers, testers, and other stakeholders to contribute to the API
testing activities with real-time updates on the status.

Paw is Postman alternative for Mac OS

Highlight Features:

• Highly compatible with macOS
• Full-featured visual editor and HTTP toolset
• Support JSON schema and is fully compliant with Swagger and RAML descriptions
• Support both OAuth 1.0 and 2.0
• Built-in mock server
• Code generation for a variety of languages, including Objective-C, Swift, and JavaScript
• Automatically generate API documentation from API requests

Insomnia

Insomnia is REST API client used to design and test REST, GraphQL, and SOAP APIs.
A noticeable advantage Insomnia has is its minimalistic and simple UI compared to Postman’s
complex and overloaded UI. Insomnia also has built-in support for GraphQL, making it easier for developers
to perform GraphQL testing without the need to use separate tools.

Insomnia is cross platform Postman alternative

In Insomnia, all of the environment data is stored in 1 centralized JSON file, while Postman stores
environment data in separate files for each environment, which many developers find to be quite
inconvenient. It is easy to see when the response came and when it failed with detailed response time for
better performance measurement.

Highlight Features:

• Requests and environments can be organized into workspace for better management
• Easy request chaining to build complex workflows
• Response content and headers are presented in an accessible format
• JSON responses are prettified and can be filtered for closer inspection
• Pre-built debugger to troubleshoot API requests
• Reusable code snippets

Hoppscotch

Hopscotch is an open-source API development and testing tool that can be used as a Postman alternative.
It has a user-friendly interface to test and debug APIs. It is available as a web app, desktop app,
browser extension, and can be used on Windows, macOS, and Linux. Hoppscotch supports REST, GraphQL,
WebSocket, and other protocols.

Hoppscotch is an open-source and cross platform Postman alternative

Highlight Features:

• Lightweight, and immediately accessible — no need to create an account
• Automatic response validation based on the expected status codes and data formats
• Clean interface to quickly create, test, and debug API requests
• Real-time request/response data
• Code snippets
• Support a wide range of HTTP request types, including GET, POST, PUT, DELETE, PATCH, and OPTIONS
• Customizable headers and parameters to test many different scenarios
• JSON and form data support
• Actively developed and maintained
• Request organization into collections for easier management
• Request import/export functionality

Bruno

Bruno is a Fast and Git-Friendly Opensource API client, aimed at revolutionizing the status
quo represented by Postman, Insomnia and similar tools out there.

Bruno stores your collections directly in a folder on your filesystem. We use a plain text markup language,
Bru, to save information about API requests. You can use git or any version control of your choice
to collaborate over your API collections.

Bruno is a new Postman alternative

Highlight Features:

• Lightweight alternative to Postman
• Powerful and extensive Scripting
• Collection Level Proxy (http, https, socks5)
• Binaries and Portable Versions for Mac, Linux and Win
• Json Prettify in Request Body
• Headers, Auth, Scripts, Tests and Docs

Kreya

Kreya is a GUI client for gRPC and REST APIs with innovative features for environments,
authorizations and more.

Kreya is GUI Postman alternative

Highlight Features:

• The ultimate gRPC client with support for server reflection, streamed requests, request validation.
• Switch between different environments easily.
• Support for REST calls, different request and response formats, importing OpenAPI definitions.
• Define tests with scripting and automatically test your API with each call. Straightforward without any
complicated setup.
• All requests and configurations are stored in the file system. Sync your Kreya projects with git or any
other syncing software.
• Define your authentication values in one place and reference them in requests. No need to repeat yourself.

Thunder Client for VS Code

Thunder Client is a hand-crafted lightweight Http Client extension for Visual Studio Code.
No separate download needed, Just install the extension from VS Code marketplace.

Thunder Client is Postman alternative for VS Code

Highlight Features:

• Lightweight, simple, and easy to use Rest Client for Testing APIs.
• Save requests into collections and variables in environments.
• Test API responses easily with a GUI-based interface without any scripting.
• The CLI supports CI and CD integration and generates reports.
• Save requests data to your Git workspace and share it with team members.
• All the data is saved locally on the user’s device and also works offline.

Testfully

This Postman alternative runs in the browser and does not require any software installation. It can inspect
responses from both local and deployed Restfully and GraphQL APIs and supports Environments and Configs, as
well as the ability to embed random data in your requests.

Moreover, Testfully saves your requests to the cloud, which you can easily share with your teammates.
Testfully’s API testing and monitoring features enable you to re-use tests easily and validate the
correctness of your local and deployed APIs in different environments. This means you can quickly test and
monitor your endpoints without configuring anything.

Testfully is Postman alternative runs in the browser

Highlight Features:

• SOAP API Support: Testfully focuses on REST APIs and currently does not support SOAP APIs.
• Configuration Flexibility: It allows users to configure headers, query parameters, and authorization.
• Authorization Methods: Testfully supports various authorization methods, including OAuth2, Basic Auth,
Bearer Token.
• Unlimited Testing: Users can run collections without limitations, even with a free plan.
• Advanced Testing: It supports multi-step tests and request chaining, enabling advanced.
• Collaboration: Testfully facilitates collaboration with team members through shared requests and
folders.
• Implement multi-step tests by leveraging your existing requests.
• Multi Environment Support.

Try the fastest REST client

NativeRest is a new tool for creating, debugging and testing APIs. Some of its features are unique and
not available in Insomnia and Postman. Try the fastest REST API client and tell your friends.

NativeRest Installer

Version 2.5.4

Compatible with Windows, macOS

NativeRest key features

High-performance and memory efficient

Working in offline mode

Import and export data

Generating code snippets

Custom HTTP methods

Full-featured portable version

Multilingual User Interface

Light and dark themes

See description of all features on NativeRest page.

Awesome Postman Alternatives (Open Source & Free)

Awesome API Clients as Postman Alternatives

In the dynamic world of software development, Application Programming Interfaces (APIs) are the vital conduits connecting disparate services, applications, and data sources. They are the engines of modern digital experiences. Consequently, the tools used to design, develop, debug, test, and manage these APIs are fundamental to developer productivity and application quality. For many years, Postman established itself as a dominant player in this space, offering a comprehensive suite of features for interacting with APIs. Insomnia also gained significant traction as a popular, user-friendly alternative.

However, the API client landscape is undergoing a significant shift. Recent changes in the business models and feature strategies of established players, particularly around mandatory cloud synchronization, account requirements, pricing tiers, and data privacy concerns, have led many developers and organizations to actively seek Postman alternatives and Insomnia alternatives. Community discussions (like this one on Reddit) highlight a growing desire for tools that prioritize user control, data privacy, offline access, and freedom from vendor lock-in. Concerns about feature bloat in established tools also drive searches for simpler, more focused solutions.

The fantastic news is that the developer community, particularly the open-source ecosystem, has risen to the challenge. There is now a vibrant and diverse range of high-quality, free Postman alternatives that offer powerful features, flexible workflows, and greater control over your data and development environment. Whether you need a lightweight alternative, a feature-rich desktop application, a seamless VS Code extension, a powerful CLI tool, or a dedicated API testing framework, there’s likely an open-source solution that fits your needs.

This document serves as a curated list of Awesome API Clients, focusing specifically on Open Source and Free Postman Alternatives. These tools empower developers with the functionality they need for effective API development and testing without the compromises often associated with proprietary, cloud-centric platforms.

Why Seek Open Source & Free Postman Alternatives? The Driving Forces

The migration towards open-source API clients isn’t merely about avoiding costs; it’s often rooted in core principles crucial to developers and modern software practices:

  1. Data Privacy & Control (No Forced Cloud Sync): Mandatory cloud features in tools like Postman and recent versions of Insomnia raise significant concerns about the storage location of sensitive API keys, tokens, environment variables, and request history. Open-source alternatives, especially those offering offline-first capabilities (like Bruno, Restfox) or self-hosted options (like Yaade), provide absolute control, ensuring sensitive data remains entirely within your local machine or trusted infrastructure. This is a paramount concern for many individuals and organizations.
  2. Avoiding Vendor Lock-in: Relying exclusively on a proprietary platform can create dependencies that make future transitions difficult or expensive. Open-source tools often utilize standard, text-based formats for storing collections and environments (e.g., JSON, YAML, or custom formats easily managed with Git like Bruno’s Bru Lang), ensuring data portability and preventing lock-in.
  3. Cost-Effectiveness: While Postman and others offer free tiers, accessing advanced features, enabling collaboration for larger teams, or exceeding usage limits often necessitates paid subscriptions. Many free open-source alternatives provide a comparable, if not superior, feature set without any mandatory costs, democratizing access to powerful API tooling.
  4. Flexibility, Extensibility & Customization: Open-source software can often be inspected, modified, and extended more easily than closed-source counterparts. Some tools (like Milkman) have explicit plugin architectures, while others can be integrated into bespoke workflows through scripting or leveraging their source code.
  5. True Offline Access: Mandatory sign-in and cloud dependency hinder work in environments with restricted or no internet access. Many alternatives listed here are designed to work perfectly offline, ensuring productivity regardless of connectivity.
  6. Simplicity & Focus (Avoiding Feature Bloat): Some developers feel that established tools have become overly complex («feature bloat»). Many alternatives focus on providing a clean, streamlined experience centered on core API interaction and testing tasks. Lightweight alternatives are actively sought after.
  7. Community & Transparency: Open-source projects thrive on community contributions, bug reports, and feature suggestions. Development is transparent, and users can audit the code for security or functionality verification. This collaborative model fosters trust and innovation.

Criteria for Inclusion for Postman Alternatives

This list prioritizes active, community-supported, and genuinely open-source projects relevant for API development and testing:

  • Open Source: The project must possess a publicly accessible source code repository under a recognized open-source license (MIT, Apache 2.0, etc.).
  • Free Core Functionality: The essential features for sending API requests (REST, possibly GraphQL/gRPC), managing environments, and organizing requests (collections) must be available for free, without requiring a paid subscription for typical Postman/Insomnia use cases.
  • Active/Viable: Generally, projects should exhibit signs of life, such as having more than 200 stars on their primary repository and contributions from at least 2 individuals. This indicates a baseline level of community interest and sustainability. (Exceptions may be made for highly relevant niche tools or established projects like curl).

This list is categorized for clarity: Web-Based, Desktop, IDE Integration, Command-Line (CLI), and Automated API Testing Frameworks. While some tools might fit into multiple categories (e.g., Requestly), they are listed under their primary or most prominent form.


Postman Alternatives — Web-Based API Clients

Accessible from any modern browser, these clients eliminate installation hassles and often facilitate easier sharing and collaboration. Many leverage browser storage for offline use or offer PWA (Progressive Web App) capabilities.

Restfox (repo)

  • Keywords: Offline-first, Web HTTP client, Lightweight alternative, Free Postman alternative.
  • Description: Restfox directly tackles the cloud-sync concern by being an offline-first web client. Your workspaces, requests, and collections are stored locally in your browser’s IndexedDB. It provides a clean, fast, and intuitive interface for making HTTP(S) requests, organizing them, managing environments, and scripting. It’s designed to be simple yet powerful, offering core functionality without unnecessary complexity. Its emphasis on local storage and speed makes it an excellent free Postman alternative for those prioritizing privacy and performance in a web-based tool.

Hoppscotch (repo)

  • Keywords: Open source API development ecosystem, REST, GraphQL, WebSocket, PWA, Free Postman alternative, Insomnia alternative, Browser-based.
  • Description: Frequently cited as a top Postman alternative and Insomnia alternative, Hoppscotch (formerly Postwoman) is a feature-rich open-source API development ecosystem. Its sleek web interface supports REST, GraphQL, WebSocket, and Server-Sent Events. Key features include collections, environment variables, pre-request scripts, test scripts (JavaScript sandbox), documentation generation, and collaboration workspaces. It offers flexibility with data storage: local browser storage, optional Hoppscotch cloud sync, or even self-hosting. Its PWA support allows for an installable, near-native experience with offline access. Its comprehensive feature set makes it suitable for both individual developers and teams looking for a powerful, free, browser-based client.

Firecamp (repo)

  • Keywords: Multi-protocol, GraphQL, WebSocket, Socket.IO, VS Code DX, Open Source Postman Alternative.
  • Description: Firecamp aims to provide a superior Developer Experience (DX) inspired by VS Code. It stands out with its multi-protocol support, handling REST, GraphQL, WebSocket, and Socket.IO APIs within a unified interface. This makes it incredibly versatile for projects involving real-time communication alongside traditional APIs. Features include workspaces, collections, scripting, and a focus on collaborative workflows. Its VS Code-like command palette and layout offer familiarity for many developers. Firecamp is a strong open-source Postman alternative for those needing broad protocol support and appreciating a developer-centric UI.

gRPC UI

  • Keywords: gRPC, Web UI, Interactive, API exploration.
  • Description: While not a general HTTP client, gRPC UI is an indispensable open-source tool for developers working with gRPC. It provides an interactive web UI for exploring and invoking gRPC services, much like Postman does for REST. Using gRPC reflection or compiled .proto files, it discovers services and methods, allowing users to easily craft requests (including metadata), view responses, and understand gRPC schemas directly in the browser. It significantly simplifies gRPC debugging and interaction compared to using purely CLI tools.

Yaade (repo)

  • Keywords: Self-hosted, Collaborative API development, Open-source, Privacy.
  • Description: Yaade differentiates itself by being an open-source, self-hosted, collaborative API development environment. This focus on self-hosting is ideal for teams and organizations prioritizing maximum privacy and data control, ensuring all API definitions, collections, and secrets remain within their own infrastructure. It provides the essential features for managing requests, collections, and environments, facilitating teamwork in a secure, private setting. Yaade is a compelling choice for those who need collaborative features but want to avoid third-party cloud services entirely.

Prestige (repo)

  • Keywords: Text-based, In-browser HTTP client, Interface-less, Lightweight alternative.
  • Description: Prestige offers a unique, text-based approach within the browser. It acts as an «interface-less» Postman alternative, appealing to developers who prefer defining requests using simple text rather than GUI fields. You write the method, URL, headers, and body directly in a text area, and Prestige executes the request, displaying the response. This minimalist, keyboard-centric workflow can be very efficient and makes sharing request definitions as simple as copying text. It’s a lightweight alternative for those who value simplicity and text-based interaction.

Requestly (repo)

  • Keywords: Browser extension, API Client, API Mocking, Modify HTTP requests, Intercept.
  • Description: Requestly is a versatile tool available as both a browser extension and a desktop app. Its origins lie in intercepting and modifying HTTP requests (e.g., redirecting URLs, modifying headers/responses, simulating network conditions), which is invaluable for frontend development and debugging. It has expanded to include a capable API client, allowing users to send HTTP(S) requests directly. It also features API mocking. This combination of interception, modification, mocking, and request sending in one tool makes it powerful, especially for web developers needing deep browser integration or comprehensive debugging capabilities. Its free tier offers significant functionality.

Swagger UI (repo)

  • Keywords: OpenAPI, Swagger, API Documentation, Interactive Testing, Open Source.
  • Description: While Swagger UI‘s primary purpose is to render OpenAPI (formerly Swagger) specifications as interactive API documentation, it serves as a valuable tool for interactive testing. It generates a user interface directly from an API definition, allowing developers (and consumers) to explore endpoints, understand request/response models, and execute live API calls directly within the documentation page. It’s open-source and widely used. Though not a full-fledged API client like Postman (lacking collections management, complex scripting, etc.), its ability to provide an immediate, interactive testing environment based on the API contract makes it an essential part of the API ecosystem and a useful tool for quick checks. Often discussed in «Swagger vs. Postman» comparisons, they serve different primary roles but overlap in interactive testing.

Postman Alternatives — Desktop API Clients

Installed natively on your OS (Windows, macOS, Linux), desktop clients often provide superior performance, deeper system integration, and guaranteed offline operation.

Bruno (repo)

  • Keywords: Opensource IDE for APIs, Offline-first, Git-friendly, Local storage, Privacy, Free Postman alternative, Insomnia alternative, Bruno.
  • Description: Bruno has rapidly emerged as a leading free Postman alternative and Insomnia alternative, heavily praised in community discussions (Reddit, Hacker News). Its core philosophy is offline-first operation and storing API collections directly on the local filesystem using Bru Lang, a plain text markup language. This makes collections inherently Git-friendly, allowing seamless version control alongside code. Bruno offers a clean UI, REST and GraphQL support, environment variables, declarative scripting (JavaScript), and assertions for API testing. Its explicit rejection of mandatory cloud sync strongly appeals to users prioritizing privacy and local storage. Many see Bruno as a modern, fast, and developer-centric offline alternative.

Yaak (repo)

  • Keywords: Intuitive desktop API client, Lightweight alternative, Cross-platform.
  • Description: Yaak focuses on being the «most intuitive» desktop API client, prioritizing simplicity and ease of use. It provides a clean, polished interface for sending requests, managing environments, and organizing collections across different workspaces. It aims to be a lightweight alternative that is quick to learn and efficient for daily API interaction tasks, available for Windows, macOS, and Linux.

API Dash

  • Keywords: Cross-platform API Client, Flutter, Open-source, Beautiful UI.
  • Description: Built with Flutter, API Dash delivers a beautiful and consistent user experience across Windows, macOS, and Linux. It provides the core functionalities needed for interacting with REST APIs, including request creation, response inspection, collections, and environment management. Its focus on a visually appealing UI and native cross-platform performance makes it an attractive open-source option.

ezy (repo)

  • Keywords: gRPC GUI client, gRPC-Web, Desktop client.
  • Description: Similar to gRPC UI for the web, ezy is a dedicated desktop GUI client specifically for gRPC and gRPC-Web services. It simplifies interaction with gRPC endpoints compared to CLI tools, offering features like service discovery (reflection or proto files), request crafting, response viewing, and metadata handling in a user-friendly desktop application. An essential tool for developers heavily invested in the gRPC ecosystem.

BloomRPC

  • Keywords: gRPC GUI Client (Unmaintained).
  • Description: BloomRPC was an early and popular GUI client for gRPC services, known for its clean interface based on proto file definitions. (Important Note: BloomRPC appears to be unmaintained). While historically significant, users should consider more actively maintained alternatives like ezy or Evans CLI for ongoing projects. It’s listed here for context due to its previous popularity.

Milkman

  • Keywords: Extensible Request/Response Workbench, Plugin architecture, JavaFX.
  • Description: Milkman bills itself as an extensible request/response workbench. Built using JavaFX, its key feature is a plugin-based architecture, allowing users to extend its capabilities beyond standard HTTP requests. This makes it suitable for specialized protocols or workflows. It’s an open-source option for developers needing high customization potential.

Insomnium

  • Keywords: Insomnia fork, Local, Privacy-focused, Offline, Open-source Insomnia alternative.
  • Description: Insomnium was created as a direct fork of Insomnia specifically to remove the mandatory cloud sync and account requirements introduced by Kong. It aims to provide the familiar Insomnia UX while ensuring all data remains 100% local and private. It’s the quintessential privacy-focused, offline, open-source Insomnia alternative for users who liked the original interface but prioritize data locality. (Note: As with any fork, users should check the repository for ongoing maintenance activity).

Pororoca (repo)

  • Keywords: HTTP inspection tool, HTTP/2, HTTP/3, Rust.
  • Description: Pororoca is primarily an HTTP inspection tool with strong support for modern protocols like HTTP/2 and HTTP/3, alongside HTTP/1.1. Built with Rust for performance, it allows detailed analysis and debugging of interactions using these newer protocols, capabilities often lacking in older clients. While it can send requests, its focus on inspection and advanced protocol support differentiates it.

Nightingale REST Client (repo)

  • Keywords: Windows REST API client, Fluent design, Resource-efficient, Open-source.
  • Description: Nightingale is a modern, open-source REST API client specifically designed for Windows, utilizing Fluent design principles for a native look and feel. It emphasizes performance and resource efficiency. It supports collections, environments, request history, and various authentication methods, making it a polished choice for developers primarily on the Windows platform.

Requestly (repo)

  • Keywords: Desktop app, API Client, API Mocking, Modify HTTP requests, Intercept.
  • Description: In addition to its browser extension, Requestly offers a full-featured desktop app (Windows, macOS, Linux). This provides the same powerful combination of API client, API mocking, request/response interception, and modification capabilities in a standalone application. Ideal for users who prefer a dedicated tool or need to intercept traffic system-wide or from non-browser applications.

Cartero (repo)

  • Keywords: Native, Lightweight, Multiplatform, Free HTTP client.
  • Description: Cartero aims to be a native, lightweight, multiplatform, and free HTTP client. It focuses on providing the essential API request functionality without excessive complexity, using native UI toolkits (like GTK on Linux) for better performance and OS integration. A good option for users seeking a simple, fast, no-frills desktop client.

Postman Alternatives — IDE Integration API Clients

These tools bring API interaction directly into your code editor, minimizing context switching and keeping API testing close to development.

VS Code REST Client (repo)

  • Keywords: VS Code extension, Send HTTP request, Text-based, IDE integration.
  • Description: An immensely popular VS Code extension, REST Client allows developers to define and send HTTP/GraphQL requests directly from plain text files (.http or .rest). It uses a simple, intuitive syntax, supports environment variables (via VS Code settings), code snippets, response saving, cURL command generation, and more. Clicking «Send Request» executes the query, displaying the response in a separate pane. Its tight integration makes it a favorite free Postman alternative for VS Code users.

Thunder Client

  • Keywords: VS Code extension, Lightweight REST API Client, GUI inside VS Code.
  • Description: Another highly popular VS Code extension, Thunder Client provides a lightweight, GUI-based REST API client experience directly within the editor, often cited as a direct Postman alternative for VS Code users. Unlike the text-based approach of REST Client, Thunder Client offers a graphical interface similar to standalone clients (Postman, Insomnia) but integrated into VS Code’s sidebar. It supports collections, environment variables, scripting, and testing, offering a more visual workflow without leaving the IDE. Its ease of use and feature set make it extremely popular.

RESTClient (Firefox Add-on)

  • Keywords: Firefox add-on, REST debugger, Browser extension.
  • Description: A simple browser extension for Firefox providing a basic UI to construct and send HTTP requests and view responses. Useful for quick debugging or testing of web services directly from within Firefox.

restclient.el

  • Keywords: Emacs HTTP client, Text-based, IDE integration.
  • Description: For users of the Emacs editor, restclient.el enables defining and executing HTTP requests from within plain text buffers using a specific format. It integrates seamlessly into Emacs workflows, allowing responses to be viewed and manipulated within the editor.

verb

  • Keywords: Emacs HTTP client, Organize requests, IDE integration.
  • Description: Another option for Emacs users, verb focuses on organizing and sending HTTP requests from within the editor, providing an alternative workflow and feature set to restclient.el.

rest.nvim

  • Keywords: Neovim HTTP client, Lua, Fast, IDE integration.
  • Description: A fast, Lua-based HTTP client specifically for Neovim users. rest.nvim allows defining requests in .http files (similar to VS Code REST Client) and executing them directly within Neovim, leveraging the editor’s modern capabilities for a performant experience.

kulala.nvim

  • Keywords: Neovim REST Client, Minimalist, IDE integration.
  • Description: Positioned as a minimal REST client interface for Neovim, kulala.nvim likely offers core request-sending functionality with a focus on simplicity and potentially less configuration overhead compared to rest.nvim.

Postman Alternatives — Command-Line (CLI) API Clients

Indispensable for automation, scripting, and terminal enthusiasts, CLI tools offer performance, composability, and easy integration into CI/CD pipelines.

curl (repo)

  • Keywords: curl, Command line tool, Data transfer, URL syntax, CLI.
  • Description: The foundational, ubiquitous command-line tool for transferring data using URL syntax. Active since 1998, curl is incredibly powerful and versatile, supporting numerous protocols (HTTP, HTTPS, FTP, SMB, LDAP, etc.) with extensive options for fine-grained control. While its syntax can be complex, its reliability and presence on virtually every system make it essential for scripting and basic API testing. It’s the benchmark against which other CLI clients are often measured.

HTTPie (repo)

  • Keywords: HTTPie, Human-friendly HTTP client, CLI, JSON support, Syntax highlighting.
  • Description: HTTPie aims to make CLI interaction with HTTP APIs as human-friendly as possible. It provides an intuitive syntax, sensible defaults, built-in JSON support, syntax highlighting, and formatted output, making it significantly easier and more pleasant to use for common API calls than raw curl. A very popular free Postman alternative for terminal users seeking better usability.

grpcurl

  • Keywords: grpcurl, gRPC CLI, Command-line tool, gRPC reflection.
  • Description: The curl equivalent for gRPC. grpcurl allows interacting with gRPC servers from the command line, enabling service discovery (via reflection or proto files), listing methods, and invoking RPC calls. Essential for scripting and testing gRPC services in a terminal environment.

xh

  • Keywords: Friendly HTTP requests, Fast CLI tool, Rust.
  • Description: Built with Rust, xh is another friendly and fast CLI tool for sending HTTP requests, positioned as an alternative to HTTPie. It offers similar usability improvements over curl, focusing on performance and a pleasant user experience with features like simplified syntax and colored output.

posting

  • Keywords: Modern API client, Terminal-based.
  • Description: posting aims to be a modern API client living entirely in the terminal, potentially offering a more interactive or structured experience than simple request/response tools, possibly managing contexts or sessions within its interface.

curlie

  • Keywords: curl frontend, HTTPie syntax, CLI.
  • Description: curlie cleverly acts as a frontend for curl, allowing users to use HTTPie-like syntax while leveraging the power and ubiquity of the underlying curl executable. It translates the user-friendly commands into the appropriate curl options, offering a bridge between HTTPie’s ease of use and curl‘s extensive capabilities.

HttpRepl

  • Keywords: .NET HTTP client, CLI, REPL, OpenAPI, Swagger integration.
  • Description: Developed by Microsoft as part of the .NET ecosystem, HttpRepl is a lightweight, cross-platform CLI tool providing an interactive REPL (Read-Eval-Print Loop) for exploring and testing RESTful APIs. It allows navigation through API paths using familiar shell commands (ls, cd), integrates with OpenAPI (Swagger) definitions for better discovery, and supports standard HTTP verbs. It’s particularly convenient for .NET developers but works with any REST API.

ain

  • Keywords: Meta HTTP client, curl wrapper, wget wrapper, httpie wrapper, CLI.
  • Description: ain functions as a meta-client in the terminal. Instead of performing HTTP requests itself, it acts as a wrapper, providing a simplified syntax layer that translates commands to execute using backend tools like curl, wget, or httpie (whichever is available). This leverages the robustness of established tools while offering a potentially easier command structure.

evans

  • Keywords: gRPC client, CLI, REPL, Expressive gRPC client.
  • Description: Evans is another feature-rich CLI client for gRPC services, branding itself as a «more expressive universal gRPC client». It provides both an interactive REPL mode for exploration (with auto-completion) and a CLI mode suitable for scripting. It supports server reflection, loading proto files, handling metadata, and various output formats, serving as a powerful alternative to grpcurl.

httpYac (repo)

  • Keywords: HTTP file execution, CLI, REST, SOAP, GraphQL, gRPC, VS Code integration.
  • Description: httpYac bridges IDE/text-based definitions with CLI execution. It uses .http files (similar syntax to the VS Code REST Client) to define requests for REST, SOAP, GraphQL, and gRPC. Its CLI tool then executes these files, making it excellent for managing complex requests as code and running them in automated environments (like CI/CD). It supports environment variables, scripting hooks, and response handling. It also has a companion VS Code extension.

ATAC (repo)

  • Keywords: Terminal API client, TUI, Simple Postman alternative CLI.
  • Description: ATAC (API Terminal Automated Client) aims to provide a simple, Postman-like experience within the terminal. It likely offers a TUI (Text User Interface) or a straightforward command structure for defining, organizing (perhaps in collections), executing, and viewing HTTP requests, focusing on ease of use for common API testing tasks directly from the command line.

Postman Alternatives — Automated API Testing Frameworks

While many API clients include basic assertion capabilities, the tools in this section are specifically designed for automating API tests, often integrating into CI/CD pipelines. They typically treat tests as code or structured data, enabling complex scenarios, data-driven testing, comprehensive reporting, and robust validation. Some popular commercial tools often mentioned in this context include Katalon Studio, SoapUI, TestSigma, Assertible, ReadyAPI, and Apigee (though Apigee is more an API management platform), while JMeter is a powerful open-source tool focused on load testing but usable for functional API tests. The following are primarily open-source frameworks focused on functional and integration API testing.

Step CI (repo)

  • Keywords: API Test Automation framework, Declarative testing, YAML, CI/CD integration, Open-source.
  • Description: Step CI is an open-source API test automation framework emphasizing simplicity and CI/CD integration. Tests are defined declaratively using YAML, specifying API calls, data extraction rules (to chain requests), and assertions. It’s designed for ease of use, allowing developers and QA teams to quickly create and maintain automated API tests as part of their development lifecycle.

Hurl (repo)

  • Keywords: Plain text HTTP requests, API testing, CLI, Assertions, CI/CD.
  • Description: Hurl executes HTTP requests defined in simple, human-readable plain text files (.hurl). This format allows specifying request details (method, URL, headers, body) alongside assertions on the response (status, headers, body content via JSONPath, XPath, regex, etc.) and capturing values for subsequent requests. Hurl acts as a CLI tool that runs these files, making it ideal for integration testing within CI/CD pipelines due to its simplicity and dependency-free nature.

Karate (repo)

  • Keywords: Karate testing framework, BDD, API test automation, Mocks, Performance testing, Open-source.
  • Description: Karate is a popular open-source framework that unifies API test automation, mocks, performance testing, and even UI automation. It uses a BDD (Behavior-Driven Development) syntax based on Gherkin, making tests readable by diverse teams. Karate excels at handling JSON and XML natively, provides powerful assertion capabilities, and allows embedding JavaScript for complex logic if needed. It’s often cited as a comprehensive alternative for teams looking beyond basic Postman tests.

Tavern (repo)

  • Keywords: Automated RESTful API testing, Pytest plugin, YAML, MQTT, Open-source.
  • Description: Tavern is a Pytest plugin for automated RESTful API testing, using a declarative YAML format. Its tight integration with Pytest allows leveraging the extensive Python testing ecosystem. Tavern supports complex scenarios, validation using JSON Schema, and extensibility for different protocols (including built-in MQTT support).

Venom

  • Keywords: Integration tests, Test runner, YAML, Executors, Open-source.
  • Description: Venom is a versatile open-source test runner developed by OVHcloud. It allows writing test cases in YAML and supports various executors (HTTP, gRPC, WebSockets, databases, SMTP, SSH, etc.), making it suitable for complex integration tests that span multiple services and protocols.

pyresttest

  • Keywords: Python REST testing, API testing framework, Basic testing, JSON.
  • Description: A relatively simple Python-based REST testing and API microbenchmarking tool. Tests are defined in JSON or YAML format, focusing on basic test structures, validations, and extraction mechanisms. It’s a straightforward option for teams comfortable with Python looking for a minimal framework.

runn

  • Keywords: Scenario runner, API testing tool, Go, Debugger.
  • Description: runn is a tool and library built in Go for running operations defined in a scenario file (YAML). It supports API testing (HTTP/gRPC), database queries, command execution, and includes features like a step-by-step debugger, making it useful for complex end-to-end scenario testing.

scenarigo

  • Keywords: End-to-end scenario testing, HTTP server testing, gRPC server testing, Go.
  • Description: Also built in Go, scenarigo is an end-to-end scenario testing tool focused on HTTP and gRPC servers. It allows defining test scenarios in YAML, referencing .proto files for gRPC, and writing assertions to validate complex application behaviors.

Schemathesis (repo)

  • Keywords: Specification-centric API testing, Property-based testing, OpenAPI, GraphQL, Open-source.
  • Description: Schemathesis takes a unique, specification-centric approach to API testing. It reads your OpenAPI or GraphQL schema and automatically generates test cases based on the defined constraints (using property-based testing principles). This helps find edge cases and specification violations that manual testing might miss. It integrates well with Python testing frameworks.

Dredd

  • Keywords: API Blueprint, OpenAPI testing, Language-agnostic, HTTP API testing.
  • Description: Dredd is a language-agnostic HTTP API testing tool that validates if your API implementation matches its documentation (API Blueprint or OpenAPI/Swagger). It reads the spec, makes requests to your live API server, and compares the results against the documented expectations. Useful for ensuring documentation stays synchronized with the actual API behavior.

abao

  • Keywords: RAML testing, REST API automated testing.
  • Description: abao is specifically designed for automated testing of REST APIs documented using RAML (RESTful API Modeling Language). It functions similarly to Dredd but focuses on the RAML specification format.

HttpRunner (repo)

  • Keywords: API testing framework, YAML/JSON, Go/Python, Load testing support.
  • Description: HttpRunner is a popular open-source API testing framework supporting tests defined in YAML or JSON. It has implementations in both Go and Python (HttpRunner v4 onwards focusing on Go). It supports various features like data-driven testing, complex scenarios, hooks, and can also be used for basic load testing.

k6 (repo)

  • Keywords: Load testing tool, Performance testing, JavaScript, Go, Open-source.
  • Description: While primarily known as a modern, developer-centric load testing tool, k6 (by Grafana) can also be used for functional API testing. Tests are written in JavaScript (ES2015+) and executed by a high-performance Go runtime. It integrates well into developer workflows and CI pipelines, focusing on performance and reliability under load, but its scripting capabilities allow for functional assertions too.

Artillery (repo)

  • Keywords: Load testing, Performance testing, Cloud-scale, YAML, JavaScript, Open-source.
  • Description: Similar to k6, Artillery is an open-source tool focused on load testing at cloud-scale. Test scenarios are typically defined in YAML, with support for custom logic written in JavaScript. While its main goal is performance testing, it includes features for making assertions and validating responses, allowing it to be used for complex functional API testing scenarios as well.

Frequently Asked Questions (FAQs) about Postman Alternatives

Based on common searches and discussions, here are answers to some frequently asked questions:

  • Is there anything better than Postman?
    «Better» is subjective and depends entirely on your needs.

    • For users prioritizing privacy, offline access, and Git integration, Bruno is often considered better.
    • For a free, feature-rich web/PWA experience, Hoppscotch is frequently cited as a superior alternative.
    • For seamless VS Code integration, VS Code REST Client or Thunder Client are often preferred.
    • For CLI power users, HTTPie or curl (with perhaps curlie or xh) offer different advantages.
    • For robust automated testing, dedicated frameworks like Karate, Step CI, or Hurl might be better suited than Postman’s built-in testing.
    • Some all-in-one commercial tools like Apidog or Katalon Studio position themselves as integrated platforms offering broader lifecycle support, which some may find «better.»
      Ultimately, the «best» Postman alternative is the one that best fits your specific workflow, priorities (privacy, cost, collaboration, offline use), and technical requirements (protocols, testing complexity).
  • How to post API without Postman?
    You have numerous options!

    • Desktop GUI Clients: Use Bruno, Insomnia/Insomnium, Hoppscotch (via PWA), Nightingale, Yaak, Requestly Desktop, etc.
    • Web-Based Clients: Use Hoppscotch, Restfox, Firecamp, Requestly Extension, etc., directly in your browser.
    • IDE Integrations: Use VS Code REST Client, Thunder Client (VS Code), restclient.el (Emacs), rest.nvim (Neovim), etc.
    • CLI Tools: Use curl, HTTPie, xh, posting, httpYac, etc., from your terminal. This is ideal for scripting and automation.
    • Programmatically: Use HTTP client libraries within your preferred programming language (e.g., requests in Python, axios in JavaScript, HttpClient in C#/.NET, OkHttp in Java/Kotlin).
    • API Testing Frameworks: Use tools like Karate, Hurl, Step CI to define and execute POST requests as part of automated test suites.
  • Which is better, Swagger or Postman?
    They serve different primary purposes but have overlapping functionality:

    • Swagger (OpenAPI Specification + Swagger UI): Primarily focuses on API design and documentation. The spec defines the contract, and Swagger UI provides interactive documentation generated from that spec, allowing basic interactive testing. Its strength is in defining and communicating the API structure.
    • Postman (and its alternatives): Primarily focuses on API interaction, testing, and development workflow. They are feature-rich clients for sending requests, managing environments/collections, writing complex test scripts (assertions, chaining), mocking, monitoring, and collaboration.
      Conclusion: They are complementary tools. Use Swagger/OpenAPI to define and document your API. Use Postman or an alternative like Bruno, Hoppscotch, or VS Code REST Client for in-depth testing, exploration, and development against that API. You often use Swagger UI for quick interactive checks based on the docs, and a tool like Postman/Bruno for more complex testing scenarios and development workflows.
  • Do people still use Postman?
    Yes, absolutely. Postman remains a very popular and widely used tool in the API development space, despite the growing interest in alternatives. It has a large user base, extensive features built over many years, and strong brand recognition. However, the recent changes regarding mandatory accounts and cloud sync have undeniably caused a significant portion of the community (especially those prioritizing privacy, offline use, or open-source principles) to evaluate and migrate to alternatives like those listed in this document. The API client landscape is now more diverse than ever.


Conclusion: The Flourishing Ecosystem of API Clients

The API client landscape is richer and more diverse than ever before. While Postman and Insomnia played pivotal roles in popularizing graphical API interaction, concerns around cloud dependence, privacy, and cost have catalyzed the growth of exceptional open-source and free alternatives.

Whether you prioritize offline-first operation (Bruno, Restfox), a comprehensive web-based experience (Hoppscotch), seamless IDE integration (VS Code REST Client, Thunder Client), CLI efficiency (HTTPie, curl, Hurl), specialized protocol support (gRPC UI, ezy, Firecamp), or robust automated testing (Karate, Step CI, Schemathesis), there is a high-quality, community-driven tool available.

This list (Awesome API Clients) provides a starting point for exploring these powerful Postman alternatives and Insomnia alternatives. Evaluate them based on your specific needs – be it individual use, team collaboration, protocol requirements, testing complexity, or philosophical alignment regarding open source and data privacy. The power to choose the right tool for your API workflow, without compromises, is firmly in your hands.

In this article, we’ll dive deep into the top alternatives to Postman, exploring their features, advantages, and drawbacks. By the end, you’ll have a solid understanding of these tools, helping you pick the best one for your API development needs.

Postman has been a cornerstone in API development for nearly a decade, revered for its ability to design, test, and document APIs. However, its once-ubiquitous reign was challenged in 2021 when it significantly changed its pricing model, eliminating unlimited user licenses in favor of per-user monthly fees. This shift prompted many developers to seek cost-effective and open-source alternatives.

Postman.png

Luckily, the API tooling ecosystem has grown, offering a plethora of feature-rich, often free or open-source alternatives. In this article, we’ll spotlight these tools, weighing their pros and cons.

Why Are Users Moving Away from Postman?

Despite Postman’s popularity, several constraints in its free plan are causing users to look for alternatives:

  • API Creation Limits: The free plan restricts teams to creating only three APIs, which is a major bottleneck for projects involving multiple microservices.
  • Collection Runner Runs: Limited to 25 test runs per month, which is insufficient for projects requiring regular testing, pushing users towards paid plans or alternative tools.
  • API and Mock Server Calls: Caps of 1,000 API calls and 1,000 mock server calls per month can restrict projects with higher traffic or complex testing needs.
  • Limited Flows: With only five flows allowed, this restricts the complexity of workflows that can be automated within Postman.
  • Team Collaboration Restrictions: The free plan limits team collaboration to only three users, forcing larger teams to upgrade or look for more inclusive alternatives.

These constraints disrupt developer workflows, leading many to seek more flexible and cost-effective solutions.

Frontend Developers.jpg

10 Popular Postman Alternatives for API Testing

1. EchoAPI: Overall Best Postman Alternative

EchoAPI is an all-encompassing API development platform designed to streamline designing, documenting, debugging, testing, and collaboration. Offering a user-friendly visual dashboard, EchoAPI allows developers to create APIs with real-time debugging and dynamic data handling.

EchoAPI3.png

Website: EchoAPI

Sure, let’s add the additional advantages to the key features of EchoAPI in English.


Key Features:

  • Visual Editing Dashboard: Simplifies API design and configuration with an intuitive interface.
  • API Debugging: Real-time testing with detailed logs and error reports.
  • API Testing: Supports both automated and manual tests for complex scenarios.
  • API Mocking: Allows frontend and backend teams to work in parallel by simulating API responses.
  • API Collaboration: Features such as Sprint Branches and Versioning aid team collaboration.
  • API documents: Generate API documents quickly with one click, and easily control access permissions. Instantly modify and update documents in real-time.
  • IDEA Plugin: Provides one-click API documentation and one-click debugging, streamlining the development process within the IntelliJ IDEA environment.
  • VS Code Plugin: An ultra-lightweight API debugging tool specifically designed for Visual Studio Code, enhancing the development experience.
  • Chrome Extension: Features one-click API capture and one-click debugging, enabling more efficient API testing directly from the browser.

Pricing: A generous free plan with extensive API tools, with affordable paid plans for more advanced features.

Pros:

  • Rich feature set in the free plan.
  • All-in-one tool for API development.
  • Detailed and actionable test reports.
  • Works offline.

echoapi4.jpg

Cons:

  • Frequent updates may be necessary due to agile development.

Choosing EchoAPI offers an efficient, feature-rich solution for API management, making it a standout alternative to Postman.

2. NativeRest: Free Postman Alternative for Rest API

NativeRest is a lightweight REST API client that doesn’t rely on the bulky frameworks like Electron, making it fast and resource-efficient.

NativeRest.png

Website: NativeRest

Key Features:

  • Native application for macOS, Windows, and Linux.
  • Comprehensive HTTP requests with structured data handling.
  • Built-in code generation for multiple languages.

Pricing: No free tier, but competitively priced for its high performance.

Pros:

  • High performance and efficiency.
  • Works offline.
  • Multilingual interface.

Cons:

  • No free plan.
  • Smaller community support.

Choosing NativeRest means opting for high performance and efficiency, perfect for developers working with large projects and minimal resources.

3. Swagger UI: Open Source Postman Alternative with Documentation

Swagger UI offers interactive API documentation and testing, making it an excellent tool for understanding and using APIs.

Swagger UI.png

Website: Swagger UI

Key Features:

  • Real-time API design with Swagger Editor.
  • Interactive and auto-updating documentation.
  • Automatic client library generation.

Pricing: Free and open-source, with commercial options available.

Pros:

  • Interactive and real-time testing.
  • Cost-effective.
  • Widely recognized OpenAPI Specification.

Cons:

  • Limited customization options.
  • Primarily a documentation tool.

Choosing Swagger UI ensures a cost-effective, powerful solution for API development and documentation that adheres to industry standards.

4. Insomnia REST Client: Popular Open Source Postman Alternative

Insomnia REST Client is celebrated for its sleek interface and powerful features for managing APIs, covering everything from testing to GraphQL support.

Insomnia.png

Website: Insomnia

Key Features:

  • Comprehensive API design experience.
  • GraphQL and environment variable support.
  • Advanced debugging and testing tools.

Pros:

  • Cross-platform compatibility.
  • User-friendly interface.
  • Automated code snippets for multiple languages.

Cons:

  • Can encounter performance issues with large APIs.
  • Advanced features may require a subscription.

Choosing Insomnia REST Client means embracing a user-friendly, powerful tool that supports both REST and GraphQL APIs efficiently.

5. Paw (Rapid API): Powerful Postman Alternative on Mac

Paw provides robust API testing for macOS with features like dynamic values and automatic validation.

Paw.png

Website: Paw

Key Features:

  • Advanced API testing and debugging.
  • Dynamic values and environment management.
  • Interactive documentation generation.

Pricing: Free for personal and professional use.

Pros:

  • Generates client code in multiple languages.
  • Supports various authentication methods.
  • Customizable workflows.

Cons:

  • Only available for Mac.
  • Limited support for Swagger and RAML.

Choosing Paw offers a sophisticated tool tailored for macOS users that enhances API testing and development efficiency.

6. Apigee: Comprehensive API Management Tool as Postman Alternative

Apigee provides an enterprise-grade API management platform, perfect for businesses needing robust security and scalability.

image.png

Website: Apigee

Key Features:

  • Full API lifecycle management.
  • Advanced security and access control.
  • Real-time analytics and monitoring.

Pricing: Custom pricing based on usage and deployment needs.

Pros:

  • Scalable and multi-cloud support.
  • Developer-friendly tools and resources.
  • Robust traffic management features.

Cons:

  • Costly for smaller organizations.
  • Steeper learning curve.

Choosing Apigee offers a comprehensive API management solution with strong analytics and security features, suited for large enterprises.

7. SoapUI: Alternative for REST and SOAP API Testing

SoapUI stands out for supporting functional, performance, and security testing across both REST and SOAP APIs.

SoapUI.png

Website: SoapUI

Key Features:

  • Comprehensive functional testing.
  • Support for complex test scenarios and mock services.
  • Performance and security testing tools.

Pricing: Available in both free and commercial versions.

Pros:

  • Versatile support for SOAP and REST APIs.
  • Intuitive user interface.
  • Integration with popular development tools.

Cons:

  • Can be resource-intensive.
  • Steeper learning curve for new users.

Choosing SoapUI provides robust capabilities for diverse API testing needs, ensuring seamless integration and detailed validation.

8. Runscope: Cloud-Based Postman Alternative for API Testing

Runscope.png

Runscope offers cloud-based API testing and monitoring, with features to ensure API reliability and performance.

Website: Runscope

Key Features:

  • Automated and real-time API testing.
  • Detailed validation of requests and responses.
  • Integrations with popular tools like Slack and PagerDuty.

Pricing: Various plans based on team size and required features.

Pros:

  • Easy to use with cloud-based flexibility.
  • Advanced scripting and request chaining.
  • Real-time monitoring from multiple locations.

Cons:

  • Initial setup complexity.
  • Higher learning curve.

Choosing Runscope ensures comprehensive API testing and monitoring, crucial for maintaining API reliability and performance.

9. Boomi: Postman Alternative with Low-Code UI

Boomi simplifies data and application integration with a low-code platform, designed to streamline API management.

Website: Boomi

Key Features:

  • Pre-built connectors for quick integrations.
  • Visual interface for low-code development.
  • Scalable and cloud-based platform.

Pricing: Custom pricing based on the organization’s needs.

Pros:

  • Wide range of connectors.
  • Robust security features.
  • Rapid development and deployment.

Cons:

  • Higher cost.
  • Limited customization for specific needs.

Choosing Boomi provides a powerful integration and API management solution, well-suited for organizations seeking low-code, scalable options.

10. Restlet Studio: Web-Based Postman Alternative for API Design

Restlet Studio ensures easy API design, testing, and documentation with a user-friendly web interface.

image.png

Website: Restlet Studio

Key Features:

  • Real-time API design with OpenAPI Specification.
  • Interactive and automatically updating documentation.
  • Mock server capabilities.

Pricing: Offers free and paid plans with additional features.

Pros:

  • Comprehensive features for API design and testing.
  • Cloud-based, easy access from anywhere.
  • Supports collaboration and teamwork.

Cons:

  • Limited features in the free version.
  • Pricing can be high for smaller teams.

Choosing Restlet Studio provides a web-based solution perfect for API design and management, with robust collaboration features.

Conclusion

While Postman is a popular tool, these alternatives offer various features and pricing models to suit different needs. EchoAPI stands out as a particularly robust option, ideal for comprehensive API management and development. Explore these tools and find the one that best fits your project requirements to enhance your API development process.

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