head to head · open source
Bruno vs openapi-typescript-codegen
Bruno has 47,027 GitHub stars, 2,890 forks, 1,831 open issues and last shipped yesterday. openapi-typescript-codegen has 3,369 stars, 546 forks, 213 open issues and last shipped 6 days ago. Bruno leads on adoption by 1,296% (47,027 vs 3,369 stars). Bruno is written in JavaScript under MIT; openapi-typescript-codegen is written in TypeScript under MIT. Bruno has attracted 6% as many forks as stars, openapi-typescript-codegen 16%. Bruno was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (javascript, openapi), 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.
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Side by side
| Bruno | openapi-typescript-codegen | |
|---|---|---|
| GitHub stars | ★ 47K | ★ 3.4K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-12 |
| Forks | ⑂ 2.9K | ⑂ 546 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Bruno if
- You weight community size — 47K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick openapi-typescript-codegen if
- You want the openapi-typescript-codegen 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-codegen fits your workflow better
About Bruno
Bruno is a lightweight, open source API client and IDE for exploring and testing APIs, built for developers and teams who want their request collections stored as plain text in a folder on their own filesystem rather than in a vendor's cloud.
read the full Bruno overview →
About openapi-typescript-codegen
Important announcement [!IMPORTANT] Please migrate your projects to use @hey api/openapi ts Due to time limitations on my end, this project has been unmaintained for a while now. The @hey api/openapi ts project started as a fork with the goal to resolve the most pressing issues. going forward they are planning to maintain the OpenAPI generator and give it the love it deserves. Please support them with their work and make sure to migrate your projects: All open PR's and issues will be archived on the 1st of May 2024 All versions of this package will be deprecated in NPM 👋 Thanks for all the support, downloads and…
read the full openapi-typescript-codegen overview →
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Frequently asked questions
Is Bruno or openapi-typescript-codegen more popular?
Bruno has 47,027 GitHub stars and openapi-typescript-codegen has 3,369. Bruno has the larger community by that measure.
Are Bruno and openapi-typescript-codegen free?
Both are open source. Bruno is licensed under MIT and openapi-typescript-codegen under MIT. Neither carries a licence fee.
What is the difference between Bruno and openapi-typescript-codegen?
Bruno is written in JavaScript and openapi-typescript-codegen 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, Bruno or openapi-typescript-codegen?
Choose Bruno if you want the larger community (47,027 stars) or its MIT licence terms. Choose openapi-typescript-codegen if its feature set, stack or MIT licence fits better. Both are self-hostable.