FastAPI
High-performance async APIs with automatic OpenAPI docs.
web-frameworksRecently released
84
Hero Score
Popularity
94
Performance
100
Ecosystem
50
Maturity
92
Dev Experience
83
⭐ 103,051 stars⬇ 108.7M downloads/wkFirst release: Dec 2018Last release: Oct 2026
Async Support: YesPlugin Extensions: MediumSpeed: Very fastDoc Quality: Very highLearning Curve: Easy
Pros
- • Type-hinted validation (Pydantic)
- • Auto OpenAPI + interactive docs
- • Great async support & Fast (performance)
Cons
- • Learning curve for async features
- • Opinionated around Pydantic (tied to the Pydantic ecosystem)
- • Dependency Injection (DI) pattern can feel complex