Cost / License
- Free
- Open Source
Application types
Platforms
- Python
- BSD
- Linux
- Mac
- Windows

Insomnium is described as 'Fast local API testing tool that is privacy-focused and 100% local. For testing GraphQL, REST, WebSockets and gRPC. This is a fork of Kong/insomnia' and is a API Client in the development category. There are more than 10 alternatives to Insomnium for a variety of platforms, including Linux, Mac, Windows, Flathub and Flatpak apps. The best Insomnium alternative is Bruno, which is both free and Open Source. Other great apps like Insomnium are Postman, Insomnia REST Client, Yaak and Hoppscotch.

A cross-platform HTTP client desktop application for testing HTTP and REST APIs, WebSocket, GraphQL (including subscriptions) and gRPC endpoints.



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



Api Quest is a desktop application designed for executing HTTP requests, storing them on the local file system, and providing portability. Whether you're a developer, QA or system engineer, this tool offers solution for handling HTTP requests effectively.

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.




GetAPI is the most popular commercial alternative to Insomnium.
API Dash is a beautiful open-source cross-platform API Client built using Flutter which can help you easily create & customize your API requests, visually inspect responses and generate API integration code. A lightweight alternative to postman/insomnia.



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.

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.




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.



