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


WizTools RESTClient is described as 'RESTClient can be used to test variety of HTTP communications and RESTful webservices. Friendly GUI, rich functionalities' and is a API Client in the development category. There are more than 50 alternatives to WizTools RESTClient for a variety of platforms, including Mac, Windows, Linux, Web-based and Google Chrome apps. The best WizTools RESTClient alternative is Wget, which is both free and Open Source. Other great apps like WizTools RESTClient are cURL, Postman, Insomnia REST Client and Yaak.
API Test Base is a free tool for integration testing a variety of APIs. It is suitable for Integration, ESB and Microservices testing.






Assertible is the easiest way to test and monitor your APIs and helps reduce bugs in web apps by providing tools to continuously validate endpoints and responses with a flexible interface to run your tests any time and place.




RequesterX is a free desktop HTTP client for API testing and development. Organize requests into nested collections, use environment variables for easy context switching, generate code snippets in 13 languages, and keep everything stored locally — no account required.

Bearer is a developer tool that helps engineering teams monitor API requests, track performance, detect anomalies, and fix issues for their critical API usage. The solution monitors all outgoing API requests without proxying traffic.




FRequest is a fast, lightweight and opensource Windows / macOS / Linux desktop program to make HTTP(s) requests (e.g. call REST apis).




Powerful IDE to work with API. Harness the power of scenarios, autocompletion and syntax highlight for API development. Write tests, share code without leaving the comfortable development environment.




Gotcha HTTP Client is a lightweight http client that allows you to make requests and inspect responses.






