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Insomnia
API client for REST, GraphQL and gRPC
Latest: core@13.3.1Released Oct 9, 2026★ 40k on GitHubLicense: Apache-2.0
About Insomnia
Insomnia is an open-source API client for designing, debugging and testing REST, GraphQL and gRPC requests, maintained by Kong.
Good for
- Testing REST and GraphQL endpoints
- Organising requests into collections and environments
- Developers moving away from Postman
What’s new in core@13.3.1
Full Changelog: https://github.com/Kong/insomnia/compare/core@13.3.0...core@13.3.1
Install & verify
- Windows: run the installer, or unzip the portable build. SmartScreen may warn about new releases; that is normal for unsigned open-source builds.
- macOS: open the disk image and drag the app to Applications. If it is blocked, right-click it and choose Open.
- Linux: install the .deb or .rpm with your package manager, or run the AppImage or archive.
- Verify: press Copy SHA next to a file, then compare it with
certutil -hashfile FILE SHA256(Windows) orshasum -a 256 FILE(macOS/Linux).
Version history
| Version | Released | Files | Download |
|---|---|---|---|
| core@13.3.1 Latest | Oct 9, 2026 | 25 | Downloads & notes |
| core@13.3.0 | Sep 23, 2026 | 25 | Downloads & notes |
| core@13.2.0 | Aug 25, 2026 | 25 | Downloads & notes |
| core@13.1.0 | Jul 24, 2026 | 25 | Downloads & notes |
| core@13.0.2 | Jun 24, 2026 | 25 | Downloads & notes |
| core@13.0.1 | Jun 18, 2026 | 25 | Downloads & notes |
| core@13.0.0 | Jun 16, 2026 | 25 | Downloads & notes |
| core@12.6.0 | May 22, 2026 | 25 | Downloads & notes |
Older versions can contain known security issues. Use the latest release unless you need a specific one for compatibility.
Frequently asked questions
Is Insomnia free?
Yes. Insomnia is open source under the Apache-2.0 license and free to download.
Where do the downloads come from?
Every button links directly to the official GitHub release of Kong/insomnia. OpenSourceDL does not host or modify any files.
Which version is the latest?
core@13.3.1, released Oct 9, 2026.
How do I check the file is safe?
Copy the SHA-256 next to the file and compare it with the hash of your downloaded copy. Only download older versions if you need them, as they may have known security issues.
