flask-restx VS fastapi

Compare flask-restx vs fastapi and see what are their differences.

flask-restx

Fork of Flask-RESTPlus: Fully featured framework for fast, easy and documented API development with Flask (by python-restx)
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flask-restx fastapi
11 516
2,181 80,686
0.2% 2.1%
4.9 9.9
3 months ago 7 days ago
Python Python
GNU General Public License v3.0 or later MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

flask-restx

Posts with mentions or reviews of flask-restx. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-10-25.

fastapi

Posts with mentions or reviews of fastapi. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2025-02-06.

What are some alternatives?

When comparing flask-restx and fastapi you can also consider the following projects:

flask-smorest - DB agnostic framework to build auto-documented REST APIs with Flask and marshmallow

Tornado - Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed.

Flask RestPlus - Fully featured framework for fast, easy and documented API development with Flask

AIOHTTP - Asynchronous HTTP client/server framework for asyncio and Python

flask-restful - Simple framework for creating REST APIs

django-ninja - 💨 Fast, Async-ready, Openapi, type hints based framework for building APIs

apispec - A pluggable API specification generator. Currently supports the OpenAPI Specification (f.k.a. the Swagger specification)..

litestar - Production-ready, Light, Flexible and Extensible ASGI API framework | Effortlessly Build Performant APIs

drf-spectacular - Sane and flexible OpenAPI 3 schema generation for Django REST framework.

Robyn - Robyn is a Super Fast Async Python Web Framework with a Rust runtime.

flask-rebar - Flask-Rebar combines flask, marshmallow, and swagger for robust REST services.

Flask - The Python micro framework for building web applications.

Nutrient - The #1 PDF SDK Library
Bad PDFs = bad UX. Slow load times, broken annotations, clunky UX frustrates users. Nutrient’s PDF SDKs gives seamless document experiences, fast rendering, annotations, real-time collaboration, 100+ features. Used by 10K+ devs, serving ~half a billion users worldwide. Explore the SDK for free.
nutrient.io
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Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.
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