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




EchoAPI is described as 'All-in-one API development collaboration platform that offers essential features like API debugging, design, automated testing, stress testing, and documentation generation' and is an app in the web browsers category. There are more than 50 alternatives to EchoAPI for a variety of platforms, including Mac, Windows, Linux, Web-based and Flathub apps. The best EchoAPI alternative is Bruno, which is both free and Open Source. Other great apps like EchoAPI are Postman, Insomnia REST Client, Yaak and Insomnium.
FRequest is a fast, lightweight and opensource Windows / macOS / Linux desktop program to make HTTP(s) requests (e.g. call REST apis).




Loadmill helps developers easily create the tests required for continuous delivery by analyzing user behavior. Loadmill automates backend regression testing by replaying real user behavior. Through the use of smart recordings, the platform can create and replay thousands of...




Resonance is a clean and minimal API client application designed to provide an excellent user experience for testing and interacting with APIs. Built with Electron, it offers a modern and intuitive interface for developers.

Milkman is a JavaFx-based workbench for crafting requests / responses. It is not limited to e.g. http (or more specifically rest) requests but can be extended in any imaginable way. It is optimized for fast startup and efficient workflow.

