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A high performance, easy to learn, fast to code, ready for production web framework
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What is FastAPI?

It is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.
FastAPI is a tool in the Microframeworks (Backend) category of a tech stack.
FastAPI is an open source tool with 51.8K GitHub stars and 4.2K GitHub forks. Here’s a link to FastAPI's open source repository on GitHub

Who uses FastAPI?

122 companies reportedly use FastAPI in their tech stacks, including Primer, Payhere, and Back-end.

392 developers on StackShare have stated that they use FastAPI.

FastAPI Integrations

Pros of FastAPI
Rapid Development
Super Lightweight
Open Source
Fast performance
Decisions about FastAPI

Here are some stack decisions, common use cases and reviews by companies and developers who chose FastAPI in their tech stack.

Shared insights

Not sure if we should use DRF or FastAPI. I hear many good things about FastAPI, but it doesn't seem to have a big community. Most important things for us: - speed - ease of development - scalability & security

We're likely going to use MongoDB, so not sure if that changes anything. Would appreciate any help!

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Shared insights

I'm a Data Engineer, looking to build some web apps in my spare time, especially on weekends. I'm debating between choosing Django over FastAPI. What I am pondering are performance, development speed, ease of management, scalability, and support if I ever need to use another frontend framework (eg React). Please help me with advice, I would appreciate it!

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Shared insights

I need to build a full authentication and authorisation service, one of many services in my application. I am deciding between Django and FastAPI to implement this service. The full scope of the service will be authentication, roles and permissions.

My major concerns are developer experience and time savings. Please advise with reasons to choose one over the other.

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Shared insights

Hello, I am trying to build a hobby API that can handle B2B tasks for the supply chain management process. And can be consumed to fit different platforms, such as, mobile applications(android, Ios), & a web app. I am not experienced in building enterprise-grade software. So, I am seeking advice if FastAPI can be used for such software and any other tools or stacks I can apply. Thank you in advance.

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FastAPI's Features

  • Very high performance, on par with NodeJS and Go
  • Increase the speed to develop features by about 200% to 300%
  • Reduce about 40% of human (developer) induced errors
  • Great editor support. Completion everywhere. Less time debugging
  • Designed to be easy to use and learn. Less time reading docs
  • Minimize code duplication. Multiple features from each parameter declaration. Fewer bugs
  • Get production-ready code. With automatic interactive documentation

FastAPI Alternatives & Comparisons

What are some alternatives to FastAPI?
Express is a minimal and flexible node.js web application framework, providing a robust set of features for building single and multi-page, and hybrid web applications.
Flask is intended for getting started very quickly and was developed with best intentions in mind.
Django REST framework
It is a powerful and flexible toolkit that makes it easy to build Web APIs.
Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort.
Koa aims to be a smaller, more expressive, and more robust foundation for web applications and APIs. Through leveraging generators Koa allows you to ditch callbacks and greatly increase error-handling. Koa does not bundle any middleware.
See all alternatives
Related Comparisons
No related comparisons found

FastAPI's Followers
370 developers follow FastAPI to keep up with related blogs and decisions.