head to head · open source
fastapi vs typia
fastapi has 102,471 GitHub stars, 9,913 forks, 78 open issues and last shipped 2 days ago. typia has 5,912 stars, 224 forks, 4 open issues and last shipped yesterday. fastapi leads on adoption by 1,633% (102,471 vs 5,912 stars). fastapi is written in Python under MIT; typia is written in TypeScript under MIT. fastapi has attracted 10% as many forks as stars, typia 4%. typia was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (json, json-schema, 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
| fastapi | typia | |
|---|---|---|
| GitHub stars | ★ 102K | ★ 5.9K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-18 | 2026-09-19 |
| Forks | ⑂ 9.9K | ⑂ 224 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fastapi if
- You weight community size — 102K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick typia if
- You want the typia feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and typia fits your workflow better
About fastapi
FastAPI is an MIT licensed, high performance Python web framework for building APIs with standard Python type hints, aimed at Python developers and teams that need production ready HTTP services with automatic OpenAPI documentation.
read the full fastapi overview →
About typia
Typia is an MIT licensed TypeScript transformer library that compiles pure TypeScript types into super fast runtime validators and serializers, built for TypeScript and Node.js developers who want runtime type safety without writing or maintaining a separate schema.
read the full typia overview →
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Frequently asked questions
Is fastapi or typia more popular?
fastapi has 102,471 GitHub stars and typia has 5,912. fastapi has the larger community by that measure.
Are fastapi and typia free?
Both are open source. fastapi is licensed under MIT and typia under MIT. Neither carries a licence fee.
What is the difference between fastapi and typia?
fastapi is written in Python and typia 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 typia?
Choose fastapi if you want the larger community (102,471 stars) or its MIT licence terms. Choose typia if its feature set, stack or MIT licence fits better. Both are self-hostable.