head to head · open source
fastapi vs Voiden
fastapi has 104,566 GitHub stars, 10,179 forks, 78 open issues and last shipped yesterday. Voiden has 2,008 stars, 89 forks, 38 open issues and last shipped yesterday. fastapi leads on adoption by 5,107% (104,566 vs 2,008 stars). fastapi is written in Python under MIT; Voiden is written in TypeScript under Apache-2.0. fastapi has attracted 10% as many forks as stars, Voiden 4%. fastapi 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
| fastapi | Voiden | |
|---|---|---|
| GitHub stars | ★ 105K | ★ 2.0K |
| License | MIT | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 10K | ⑂ 89 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fastapi if
- You weight community size — 105K stars and counting
- You want the MIT license terms
- Your stack matches Python
- 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 fastapi
FastAPI framework, high performance, easy to learn, fast to code, ready for production Documentation : Source Code : FastAPI is a modern, fast (high performance), web framework for building APIs with Python based on standard Python type hints. The key features are: Fast : Very high performance, on par with NodeJS and Go (thanks to Starlette and Pydantic). One of the fastest Python frameworks available. Fast to code : Increase the speed to develop features by about 200% to 300%. Fewer bugs : Reduce about 40% of human (developer) induced errors. Intuitive : Great editor support. Completion everywhere. Less time…
read the full fastapi 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 →
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Frequently asked questions
Is fastapi or Voiden more popular?
fastapi has 104,566 GitHub stars and Voiden has 2,008. fastapi has the larger community by that measure.
Are fastapi and Voiden free?
Both are open source. fastapi is licensed under MIT and Voiden under Apache-2.0. Neither carries a licence fee.
What is the difference between fastapi and Voiden?
fastapi is written in Python 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, fastapi or Voiden?
Choose fastapi if you want the larger community (104,566 stars) or its MIT licence terms. Choose Voiden if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.