head to head · open source
Insomnia vs Voiden
Insomnia has 40,111 GitHub stars, 2,388 forks, 874 open issues and last shipped yesterday. Voiden has 2,008 stars, 89 forks, 38 open issues and last shipped yesterday. Insomnia leads on adoption by 1,898% (40,111 vs 2,008 stars). Insomnia is written in TypeScript under Apache-2.0; Voiden is written in TypeScript under Apache-2.0. Insomnia has attracted 6% as many forks as stars, Voiden 4%. Voiden was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (api-client, graphql, http-client), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 20902 open source comparisons
Side by side
| Insomnia | Voiden | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 2.0K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.4K | ⑂ 89 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Insomnia if
- You weight community size — 40K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Voiden if
- You want the Voiden feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and Voiden fits your workflow better
About Insomnia
Insomnia API Client Insomnia is an open source, cross platform API client for GraphQL, REST, WebSockets, Server Sent Events (SSE), gRPC and any other HTTP compatible protocol. With Insomnia you can: Debug APIs using the most popular protocols and formats. Design APIs using the native OpenAPI editor and visual preview. Test APIs using native test suites and collection runner. Mock APIs using a cloud or self hosted mocking server. Build CI/CD pipelines using the native Insomnia CLI for linting and testing. Collaborate with others using the many collaboration features. And more including the ability to use 3rd…
read the full Insomnia overview →
About Voiden
Voiden : The offline, Git native API workspace. Build, test, document, and collaborate on APIs with plain text .void files. No accounts. No required cloud sync. Just local files, reusable blocks, and Git. Contributors Why Voiden Voiden is an offline API client that helps developers, QA and technical writers build, test, collaborate and document APIs in one place. With a programmable interface (/slash commands) and an agent friendly CLI, Voiden adapts to how engineers already work. Voiden is built with Electron, Typescript and Javascript, and it doesnt require an account to use it. No telemetry, no VC funding…
read the full Voiden overview →
More in Developer Tools
Related comparisons
More API Development & Testing projects
Compare either of these against the rest of the API Development & Testing field.
Frequently asked questions
Is Insomnia or Voiden more popular?
Insomnia has 40,111 GitHub stars and Voiden has 2,008. Insomnia has the larger community by that measure.
Are Insomnia and Voiden free?
Both are open source. Insomnia is licensed under Apache-2.0 and Voiden under Apache-2.0. Neither carries a licence fee.
What is the difference between Insomnia and Voiden?
Insomnia is written in TypeScript and Voiden in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Insomnia or Voiden?
Choose Insomnia if you want the larger community (40,111 stars) or its Apache-2.0 licence terms. Choose Voiden if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.