At Yasumu, we are on a mission to build a free, open-source API testing platform for developers that is intuitive and powerful. Our tools are designed with simplicity in mind, making API testing easier for everyone. Whether you're a seasoned developer or just starting out, our platform offers the features you need without unnecessary complexity.
Note
Yasumu has moved to neplex. This org only holds archived old repos of yasumu.
Yasumu is built using modern, efficient technologies like Tauri, React, and TypeScript, providing a lightweight yet powerful interface for testing APIs. Unlike traditional API testing platforms, Yasumu is focused on speed, privacy, and minimal resource usage, making it an excellent alternative to commercial tools such as Postman, Insomnia*, or Bruno*.
*Has both Open Source and Paid version.
| Project Name | Description | Tech Stack |
|---|---|---|
| Yasumu | A free and open-source API testing application, serving as a lightweight alternative to Postman, Insomnia, and Bruno. | Tauri, React, TypeScript |
| Tanxium | An embeddable JavaScript/TypeScript runtime built in Rust, based on Deno runtime primitives, and integrated into Yasumu for API scripting and automation. | Rust, Deno |
| Yasumu Core | Yasumu core api allows integrating yasumu's internal logic with custom APIs. | TypeScript |
| Yasumu Schema Language | Custom schema language for Yasumu | TypeScript |
We believe in building tools for the community, by the community. Yasumu is entirely open-source, and we welcome contributions from developers around the world. Whether you're interested in improving the core platform or building plugins and extensions, there's a place for you here. Let’s collaborate and create the future of API testing together!