A free and robust API, Web and Mobile test automation solution with continuous integration trusted by hundreds of thousands of developers and testers.
Cost / License
- Freemium (Subscription)
- Proprietary
Application type
Platforms
- Mac
- Windows
- Linux




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, Linux, Windows, 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 HTTP Toolkit.
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.

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



Parasoft is recognized by software development professionals as the leader in software development lifecycle automation. By integrating software development management, quality lifecycle management, and dev/test environment management through service virtualization, regression...

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.




API Test Base is a free tool for integration testing a variety of APIs. It is suitable for Integration, ESB and Microservices testing.


Apigee is a free tools platform for developers and API providers to debug, test, protect and get analytics on APIs.