If you are looking for a Postman alternative for API testing, documentation, and more, this is a starting point. This is a list of Postman alternatives in various interfaces that are available out there in the ecosystem.
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- Apidog: All-in-One API tool for design, documentation, debugging, mock, and test with an intuitive interface.
- Swagger: Open-source tool for API design, documentation, and testing with an interactive interface.
- Insomnia REST Client: Popular open-source API client with a sleek interface for designing and testing APIs.
- Paw・RapidAPI: Powerful API testing and development tool for Mac with code generation and automatic validation.
- SoapUI: Free open-source tool for testing both REST and SOAP APIs with an intuitive user interface.
- Restlet Studio: Web-based API design and testing tool with collaboration features and cloud accessibility.
- Thunder Client: User-friendly REST API testing tool integrated into Visual Studio Code as an extension.
- Testfully: API testing tool with automated testing, team collaboration, and private vaults for secure testing.
- Bruno: Open-source API client focusing on speed, Git-friendliness, and a unique approach to API testing.
- Nightingale: Desktop API client for REST API only.
- Hoppscotch: Free, open-source API development ecosystem with a feature-rich API client and collaboration tools.
- Postcode: Open-source API client with a clean and minimalistic interface for testing and exploring APIs.
- Tricentis Tosca: Tricentis Tosca is an enterprise-level software testing tool designed to automate end-to-end functional testing, integration testing, and regression testing of applications.
- Firecamp: Firecamp is an API Development Tool that provides tools to interact with REST and GraphQL APIs.
- TestMace: TestMace is a desktop API client and API testing tool that works with Restful, GraphQL, WebSocket and gRPC.
- TestSigma: TestSigma is a low-code Postman alternative for API testing.
- JMeter: JMeter was an open-source performance testing tool primarily used to test web apps, APIs, and other network protocols (FTP, SMTP, etc).
- Yaak: Open-source command-line API client for testing and debugging APIs from the terminal.
- HTTPie: User-friendly command-line HTTP client with a natural language-like syntax for API interaction.
- Curlx: Command-line tool that provides a user-friendly interface for constructing and executing cURL requests.
- Karate Labs: Karate is an automation testing framework written in Java that supports API automation, API mocking, performance testing, and UI testing.
- Apidog CLI: All-in-One API tool for design, documentation, debugging, mock, and test with an intuitive interface.
- Talend API Tester: Browser extension for sending HTTP requests and analyzing responses with automation capabilities.
- Apigee: API management platform for designing, developing, securing, and managing APIs at scale.
- Runscope: Cloud-based API testing and monitoring tool with global testing locations and integrations.
- Boomi: Cloud-based integration platform with a low-code approach for integrating data and applications.
- ReadyAPI: Comprehensive API testing and monitoring solution with a robust set of features and integrations.
- Assertible: Assertible is a cloud-based testing and monitoring tool designed to help developers and QA teams automate API testing and monitoring.
- LoadNinja: LoadNinja is a cloud-based load testing tool that helps testing web applications by generating virtual user traffic.
- Blazemeter: Cloud-based performance testing platform for load testing APIs, websites, and applications.
- API Tester: API Tester is a free and lightweight Mobile App that can be an alternative to Postman.
- RecipeUI: RecipeUI is an open-source alternative to Postman that allows JSON to be type-safe and enriched with autocomplete using TypeScript.