Yaade is the only open-source, fully self-hosted, collaborative API development environment.

Yaak is described as 'The API client for modern developers. Call REST, GraphQL, and gRPC APIs from a simple and intuitive app' and is a API Client in the development category. There are more than 50 alternatives to Yaak for a variety of platforms, including Mac, Windows, Linux, Web-based and Flathub apps. The best Yaak alternative is Bruno, which is both free and Open Source. Other great apps like Yaak are Postman, Insomnia REST Client, Hoppscotch and Insomnium.
Yaade is the only open-source, fully self-hosted, collaborative API development environment.

GetAPI is a native macOS app that simplifies REST API testing by allowing users to import from Postman, make HTTP requests, and view responses in a streamlined interface.








Send HTTP requests to API endpoints. GetIt's main focus is to make your life a lot easier when you have to test APIs or use somebody else's API.




Use Test API for restful api testing. This postman alternative test rest api online and use post request online to test API endpoint.

APISpider is a lightweight API client for testing, debugging, and documenting REST APIs. It includes request history, collections, environment variables, mock servers, and API docs — all designed to keep your workflow fast and distraction-free.


Pulse is an AI-powered automation testing tool which scans through your API documentation and generates hundreds of tests in a heartbeat.








Resonance is a local-first, zero-account API client application designed to provide an excellent user experience for testing and interacting with APIs. Built with Tauri, it offers a modern and intuitive interface for developers.

EchoAPI is an all-in-one API development collaboration platform that offers essential features like API debugging, design, automated testing, stress testing, and documentation generation.