head to head · open source
Insomnia vs openapi-typescript
Insomnia has 40,111 GitHub stars, 2,388 forks, 874 open issues and last shipped yesterday. openapi-typescript has 8,426 stars, 677 forks, 300 open issues and last shipped 1 months ago. Insomnia leads on adoption by 376% (40,111 vs 8,426 stars). Insomnia is written in TypeScript under Apache-2.0; openapi-typescript is written in TypeScript under MIT. Insomnia has attracted 6% as many forks as stars, openapi-typescript 8%. Insomnia was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Insomnia | openapi-typescript | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 8.4K |
| License | Apache-2.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-02 | 2026-09-25 |
| Forks | ⑂ 2.4K | ⑂ 677 |
| 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 openapi-typescript if
- You want the openapi-typescript feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and openapi-typescript 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 openapi-typescript
openapi typescript Tools for consuming OpenAPI schemas in TypeScript. 📦 Packages Generate TypeScript types from static OpenAPI schemas Ultra fast fetching for TypeScript generated automatically from your OpenAPI schema. ⭐ Sponsors 🥇 Gold Sponsors 🥈 Silver Sponsors Backers Become a sponsor by supporting this project on OpenCollective! 🤝 Contributing Contributions are appreciated and welcome! See the appropriate guide for each package: Contributing to openapi typescript Contributing to openapi fetch Contributing to docs ♥️ Thanks Thanks to the Project Sponsors for keeping this project going! Thanks to dozens…
read the full openapi-typescript overview →
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Frequently asked questions
Is Insomnia or openapi-typescript more popular?
Insomnia has 40,111 GitHub stars and openapi-typescript has 8,426. Insomnia has the larger community by that measure.
Are Insomnia and openapi-typescript free?
Both are open source. Insomnia is licensed under Apache-2.0 and openapi-typescript under MIT. Neither carries a licence fee.
What is the difference between Insomnia and openapi-typescript?
Insomnia is written in TypeScript and openapi-typescript 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 openapi-typescript?
Choose Insomnia if you want the larger community (40,111 stars) or its Apache-2.0 licence terms. Choose openapi-typescript if its feature set, stack or MIT licence fits better. Both are self-hostable.