Insomnia
Insomnia is a free, open-source developer tool for Windows, macOS and Linux. The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. It has 40,032 GitHub stars and is released under the Apache-2.0 license, and people use it instead of Postman.
- Official
- Linux
- macOS
- Windows
- Code editors & developer tools
- Actively maintained
About Insomnia
Insomnia is an open-source, cross-platform API client for GraphQL, REST, WebSockets, Server-Sent Events (SSE), gRPC and any other HTTP compatible protocol.
Replaces
Commercial software people commonly use Insomnia instead of.
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What is Insomnia?
Insomnia is a free, open-source developer tool for Windows, macOS and Linux. The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. It has 40,032 GitHub stars and is released under the Apache-2.0 license, and people use it instead of Postman.
Is Insomnia free and open source?
Yes. Insomnia's source code is public on GitHub under the Apache-2.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install Insomnia?
Download the installer for Windows, macOS and Linux from its GitHub Releases page (latest: core@13.3.0) or the project website.
Can Insomnia replace Postman?
Insomnia is commonly used as a free alternative to Postman. Features differ, so check that it opens the file formats and covers the workflows you rely on before switching.