Cost / License
- Free
- Open Source (MIT)
Application typeApplication types
Platforms
- Mac
- Windows
- Linux
- Online
- Docker




API Tester is described as 'The first mobile app to test any type of API on the go. Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, and HTTPS APIs completely for free, on iOS or Android' and is a API Client in the development category. There are more than 50 alternatives to API Tester for a variety of platforms, including Mac, Windows, Linux, Web-based and Flathub apps. The best API Tester alternative is Postman, which is free. Other great apps like API Tester are Insomnia REST Client, Yaak, Fiddler and Hoppscotch.




Native desktop app for Windows offers high-performance REST and HTTP API testing, low memory and CPU use, custom methods, portable version, proxy support, multiple environments, code generation, multilingual interface, and import/export in light or dark themes.




A free and robust API, Web and Mobile test automation solution with continuous integration trusted by hundreds of thousands of developers and testers.




Runscope helps you monitor, log and measure API usage to solve API problems fast. Automatically monitor APIs without any coding. Runscope provides complete logging for all of your API traffic. Track down troublesome API calls with powerful search.




This is a tool to manually explore and test HTTP REST webservices. Runs queries from a plain-text query sheet, displays results as a pretty-printed XML, JSON and even images.

Intercept, modify, and mock HTTP requests with ease. A powerful developer tool to streamline your API development and testing workflow.

All the user-friendliness of our Terminal version, now wrapped up in a sleek graphical interface.



RESTClient can be used to test variety of HTTP communications and RESTful webservices. Friendly GUI, rich functionalities.










HTTP client plugin for Sublime Text with an expansive feature set, modern UX, elegant syntax and first class support for testing.



