FastAPI framework, high performance, easy to learn, fast to code, ready for production
Async, with type hints driving validation and OpenAPI docs.
alternatives to
Flask
The Python micro framework for building web applications.
FastAPI, Sanic, Bottle and more. 6 alternatives to Flask, in Python. Compare fit, licence, stars and the latest signed release.
Side by side
| Tool | Fit | Stars | Licence | Terms | Self-hosted | Language | Latest | Last push |
|---|---|---|---|---|---|---|---|---|
| FastAPI | Full replacement | 105k | MIT | Open source | No | Python | 0.162.5 | 2026-11-11 |
| Sanic | Full replacement | 19k | MIT | Open source | No | Python | v25.12.1 | 2026-07-29 |
| Bottle | Full replacement | 8.8k | MIT | Open source | No | Python | 0.13.4 | 2026-10-25 |
| Litestar | Full replacement | 8.5k | MIT | Open source | No | Python | v2.25.0 | 2026-11-11 |
| Starlette | Partial | 13k | BSD-3-Clause | Open source | No | Python | 1.10.0 | 2026-11-06 |
| Falcon | Partial | 9.8k | Apache-2.0 | Open source | No | Python | 4.4.0 | 2026-11-11 |
Every alternative
6 alternatives
Accelerate your web app development | Build fast. Run fast.
Flask-like routing and blueprints, async, on its own production server.
bottle.py is a fast and simple micro-framework for python web-applications.
A micro framework in a single file with no dependencies, with its own routing and templates.
Light, flexible and extensible ASGI framework | Built to scale
Async and typed, with dependency injection and OpenAPI built in.
The little ASGI framework that shines. 🌟
A lightweight ASGI toolkit with routing, middleware and WebSockets, the base FastAPI is built on.
- Language
- Python
- Licence
- BSD-3-Clause
- Stars
- 13k
- Latest
- 1.10.0
- Last push
- 2026-11-06
The no-magic web API and microservices framework for Python developers, with a focus on reliability and performance at scale.
A minimal framework for REST APIs on WSGI or ASGI, without templating.
- Language
- Python
- Licence
- Apache-2.0
- Stars
- 9.8k
- Latest
- 4.4.0
- Last push
- 2026-11-11
Head to head
About Flask
- Language
- Python
- Licence
- BSD-3-Clause
- Stars
- 75k
- Last push
- 2026-10-30