28.3k
Reflex
Reflex enables creating web applications entirely in pure Python, empowering developers to build responsive and interactive web apps conveniently.
🌐
Web🐍
Python👨💻
Development
2 Open Source Alternatives to Flask
There are 2 open-source alternatives to Flask in this directory. The most popular is Reflex with 28.3k GitHub stars, followed by Fastapi_mcp(11.8k stars). All are open source, free to use, and many can be self-hosted.
Quick comparison
| # | Tool | Stars | Language | License |
|---|---|---|---|---|
| 1 | Reflex Reflex enables creating web applications entirely in pure Python, empowering developers to build responsive and interactive web apps conveniently. | 28.3k | Python | Apache License 2.0 |
| 2 | Fastapi_mcp Enhance your FastAPI application by exposing endpoints as Model Context Protocol (MCP) tools, complete with authentication support. | 11.8k | Python | MIT License |
All open-source alternatives to Flask
Frequently asked questions
What are the best open-source alternatives to Flask?
The top three are Reflex(28.3k stars), Fastapi_mcp(11.8k stars). All are open source and free to use.
Are these alternatives to Flask free?
Yes. Every tool listed here is open source and free to use in your own projects. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Can I self-host an alternative to Flask?
Many of the alternatives listed are self-hostable. Each tool's page lists hosting details, system requirements, and licensing terms.
Stay Updated!
Get notified about new tools and updates to existing ones.