Software Alternatives, Accelerators & Startups

FastAPI VS Django

Compare FastAPI VS Django and see what are their differences

FastAPI logo FastAPI

FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.

Django logo Django

The Web framework for perfectionists with deadlines
  • FastAPI Landing page
    Landing page //
    2023-05-14
  • Django Landing page
    Landing page //
    2018-09-30

FastAPI features and specs

  • High Performance
    Built on Starlette and Pydantic, FastAPI is one of the fastest frameworks for Python, providing high performance due to its asynchronous request handling.
  • Automatic Interactive API Documentation
    FastAPI automatically generates interactive API documentation via Swagger UI and ReDoc, which are very helpful for development and testing.
  • Type Checking and Validation
    With Pydantic models and Python type hints, FastAPI provides automatic data validation and type checking, reducing the chance of runtime errors.
  • Ease of Use
    Its syntax and design make it easy to learn for Python developers, offering a smooth development experience while reducing boilerplate code.
  • Asynchronous Support
    FastAPI supports asynchronous programming, allowing for better performance for I/O-bound operations, making it optimal for handling many simultaneous connections.
  • Extensive Documentation
    It has comprehensive and well-structured documentation, which is very useful for both beginners and advanced users.
  • Community and Ecosystem
    FastAPI has a growing community and ecosystem, with many plugins and integrations available to extend its functionality.

Possible disadvantages of FastAPI

  • Learning Curve for Asynchronous Programming
    Although FastAPI itself is easy to learn, grasping the concepts of asynchronous programming in Python can be challenging for beginners.
  • Complex Dependencies
    Using Pydantic for advanced validation can make the request models complex, requiring a deeper understanding of Pydantic and its functionalities.
  • Early Stage Libraries
    Some third-party libraries and extensions specifically tailored for FastAPI might still be in early stages of development and lack long-term stability.
  • Limited Real-World Examples
    Although the documentation is extensive, there might be limited real-world examples and case studies readily available compared to more mature frameworks.
  • Deployment Complexity
    Deploying FastAPI applications might be more complex in comparison to traditional synchronous frameworks, mainly due to the need for asynchronous server setups.

Django features and specs

  • Rapid Development
    Django allows developers to swiftly create web applications with its 'batteries-included' philosophy, providing built-in features and tools out-of-the-box.
  • Scalability
    Django is designed to help developers scale applications. It supports a pluggable architecture, making it easy to grow an application organically.
  • Security
    Django includes various security features like protection against SQL injection, cross-site scripting, cross-site request forgery, and more, promoting the creation of secure web applications.
  • ORM (Object-Relational Mapping)
    Django’s powerful ORM simplifies database manipulation by allowing developers to interact with the database using Python code instead of SQL queries.
  • Comprehensive Documentation
    Django offers detailed and extensive documentation, aiding developers in effectively understanding and utilizing its features.
  • Community Support
    With a large and active community, Django benefits from numerous third-party packages, plugins, and extensive support forums.

Possible disadvantages of Django

  • Steep Learning Curve
    For beginners, Django’s complex features and components can be challenging to grasp, leading to a steep learning curve.
  • Monolithic Framework
    Django’s monolithic structure can limit flexibility, potentially resulting in over-engineered solutions for simpler, smaller projects.
  • Template Language Limitations
    Django’s template language, while useful, is less powerful compared to alternatives like Jinja2, limiting functionality in complex frontend requirements.
  • Heavyweight
    Django's comprehensive feature set can result in high overhead, making it less ideal for lightweight applications or microservices.
  • Opinionated Framework
    Django follows a ‘Django way’ of doing things, which can be restrictive for developers who prefer less constrained, highly customized coding practices.
  • Lack of Asynchronicity
    Django’s built-in functionalities do not fully support asynchronous programming, which can be a limitation for handling real-time applications and processes requiring concurrency.

FastAPI videos

FastAPI from the ground up

More videos:

  • Tutorial - 30 Days of Python - Day 14 - Web App with Flask, FastAPI, ngrok, and Invictify - Python TUTORIAL
  • Review - [PT] Python - API com FastAPI - Chat | twitch.tv/codeshow

Django videos

Python Django

Category Popularity

0-100% (relative to FastAPI and Django)
Developer Tools
44 44%
56% 56
Web Frameworks
24 24%
76% 76
API Tools
100 100%
0% 0
Python Web Framework
16 16%
84% 84

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare FastAPI and Django

FastAPI Reviews

The 20 Best Laravel Alternatives for Web Development
FastAPI, as the name hints, is a swift mover. Built on Starlette, it’s all about speed and performance with Python. Crafting API masterpieces at the speed of light, now that’s something.
25 Python Frameworks to Master
Since its release in 2018, it has rapidly gained popularity due to its great performance and simplicity. In fact, according to PyPi Stats, FastAPI has over 9 million monthly downloads, surpassing even full-stack frameworks like Django.
Source: kinsta.com
3 Web Frameworks to Use With Python
myapp/ is the main directory of your FastAPI application. It includes all the other files and directories needed for the application.static/ is a directory used to store static assets such as CSS, JavaScript, and image files. These assets are served directly by the web server and are typically used to add visual styling and interactivity to the application.css/, img/, js/...
Best Alternatives to FastAPI App Free for Windows (2021)
FastAPI Alternative – So many alternatives app to FastAPI that you must to know out there. And, looking for an ideal software was not easy matter. Lucky you, at this page you can find the best replacement app for FastAPI. So what you are waiting for, get the latest FastAPI alternative app for Windows 10 from this page.
Top 5 Back-End Frameworks to Consider for Web Development in 2021
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints. It is fast when compared to other major Python frameworks like Flask and Django. FastAPI gives great flexibility to fulfill businesses’ API needs in today’s evolving world.

Django Reviews

The 20 Best Laravel Alternatives for Web Development
The first of these Laravel alternatives is Django. Django’s like that one-stop shop where you grab everything you need for a full-blown web project, all off one shelf. It’s the big-brained Python framework that anticipates your moves, keeping you steps ahead with a crazy stack of built-in features.
Top 9 best Frameworks for web development
The best frameworks for web development include React, Angular, Vue.js, Django, Spring, Laravel, Ruby on Rails, Flask and Express.js. Each of these frameworks has its own advantages and distinctive features, so it is important to choose the framework that best suits the needs of your project.
Source: www.kiwop.com
25 Python Frameworks to Master
You won’t go wrong by choosing Django for your next web project. It’s a powerful web framework that provides everything you need to build fast and reliable websites. And if you need any additional features — say, the ability to create a REST API to use with modern frontend frameworks like React or Angular — you can use extensions like Django REST framework.
Source: kinsta.com
3 Web Frameworks to Use With Python
myproject/ is the directory that contains the configuration and settings for the Django project__init__.py is an empty script that tells Python that this directory should be treated as a Python packageasgi.py is a script that defines ASGI application (Asynchronous Server Gateway Interface) for serving this project. ASGI is a specification for building asynchronous web...
Top 10 Phoenix Framework Alternatives
Phoenix borrows heavily from other frameworks built on the Model-View-Controller (MVC) architecture, like Rails and Django, providing a large part of everything you need to develop a web app out of the box, albeit in a less “batteries included” manner.

Social recommendations and mentions

Based on our record, FastAPI seems to be a lot more popular than Django. While we know about 286 links to FastAPI, we've tracked only 15 mentions of Django. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

FastAPI mentions (286)

  • Building Weather & History Story Cards with Python and FastAPI
    By the end of this tutorial, you’ll see how I used FastAPI and Jinja2 to turn raw JSON into a dynamic timeline of weather and history that feels informative and fun. - Source: dev.to / 4 days ago
  • Build Code-RAGent, an agent for your codebase
    The only thing left to do then was to build something that could showcase the power of code ingestion within a vector database, and it immediately clicked in my mind: "Why don't I ingest my entire codebase of solved Go exercises from Exercism?" That's how I created Code-RAGent, your friendly coding assistant based on your personal codebases and grounded in web search. It is built on top of GPT-4.1, powered by... - Source: dev.to / 4 days ago
  • Understanding the Relation Between FastAPI and Uvicorn
    FastAPI and Uvicorn are two essential building blocks when developing high-performance Python APIs. - Source: dev.to / 5 days ago
  • Python: Why Quart Might Be the Better Choice over FastAPI
    Python's diverse ecosystem of web frameworks offers developers a wide range of choices for building robust and efficient applications. In the realm of asynchronous frameworks, Quart and FastAPI have emerged as popular options. While FastAPI has gained considerable attention for its speed and developer-friendly features, Quart presents a compelling alternative, especially for those already familiar with the Flask... - Source: dev.to / 16 days ago
  • Partner Models for Payments: How Rapyd Powers Partner Payment Solutions
    Let's look at how to use Rapyd to build a simple system where you can onboard merchants, add products, receive payments, and receive payouts, all powered by Rapyd's API. To fully integrate this system, businesses can sign up as a Rapyd partner to access additional capabilities for managing merchant transactions. In this tutorial, you'll see how to use the FastAPI framework in Python to create endpoints for each... - Source: dev.to / 26 days ago
View more

Django mentions (15)

  • Emails Setup in Django Using AWS
    Let's dive into a quick implementation of this using AWS and Django. We will be using a couple of ideas from the AWS Official Blog. - Source: dev.to / 9 months ago
  • Top 10 Backend Frameworks in 2022
    Django is a high-level Python web framework. It is an Model-View-Template(MVT)-based, open-source web application development framework. It was released in 2005. It comes with batteries included. Some popular websites using Django are Instagram, Mozilla, Disqus, Bitbucket, Nextdoor and Clubhouse. - Source: dev.to / over 2 years ago
  • Boss wants me to make a student management system
    This seems like a job for Django. MDN offers a really good tutorial here. To be honest, it would be a massive undertaking so I’d recommend going for a prebuilt solution like PowerSchool and the like. Source: over 2 years ago
  • What's django equivalent to ruby gems? Django beginner here
    The first party docs are second to none. Start out with the official tutorial on https://djangoproject.com . Source: almost 3 years ago
  • What's django equivalent to ruby gems? Django beginner here
    Im teaching myself to build a backend SaaS. Can you build it just as fast as with RoR and gems? Is it all on the documentation on djangoproject.com? Just learning how to use it atm, any good tutorials as well? Source: almost 3 years ago
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What are some alternatives?

When comparing FastAPI and Django, you can also consider the following products

Flask - a microframework for Python based on Werkzeug, Jinja 2 and good intentions.

Laravel - A PHP Framework For Web Artisans

ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple

Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...

ASP.NET - ASP.NET is a free web framework for building great Web sites and Web applications using HTML, CSS and JavaScript.

Yii Framework - Yii is a high-performance component-based PHP framework best for Web 2.0 development.