Software Alternatives, Accelerators & Startups

replit VS FastAPI

Compare replit VS FastAPI and see what are their differences

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replit logo replit

Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.

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.
  • replit Landing page
    Landing page //
    2023-07-30
  • FastAPI Landing page
    Landing page //
    2023-05-14

replit features and specs

  • Ease of Use
    Replit offers an intuitive interface that makes it easy to start coding without needing to set up development environments. This can significantly lower the barrier to entry for beginners.
  • Collaborative Coding
    Replit facilitates real-time collaboration, allowing multiple users to work on the same codebase simultaneously, similar to tools like Google Docs.
  • Supports Multiple Languages
    Replit supports a wide range of programming languages including Python, JavaScript, C++, and many more. This makes it flexible for users with different needs.
  • Cloud-Based
    Being a cloud-based platform, Replit enables users to access their code from any device with an internet connection, eliminating the need for local storage.
  • Built-in Package Manager
    Replit comes with built-in package managers for various languages, making it easier to include third-party libraries and dependencies.
  • Educational Tools
    The platform offers various resources for educators, such as interactive coding environments and classroom management tools, making it ideal for academic settings.

Possible disadvantages of replit

  • Performance Limitations
    Being a cloud-based IDE, Replit may encounter performance issues for larger projects or those requiring intensive computational resources.
  • Limited Customization
    The environment may lack some customization options and advanced settings available in traditional, locally-installed IDEs.
  • Dependency on Internet
    Since it's cloud-based, an active internet connection is mandatory for coding, which can be a drawback in situations with unreliable internet access.
  • Privacy Concerns
    Hosting code on a third-party platform may raise privacy and security issues, especially for proprietary or sensitive projects.
  • Subscription Costs
    While Replit offers a free tier, advanced features, higher resource limits, and premium support come at a subscription cost, which may be a barrier for some users.
  • Limited Debugging Tools
    The platform's debugging tools may not be as robust as those available in more established, dedicated IDEs.

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.

Analysis of FastAPI

Overall verdict

  • FastAPI is widely regarded as a good choice, especially for applications that require high performance, scalability, and modern Python features. It is suitable for both simple and complex projects, making it a versatile tool in the web development ecosystem.

Why this product is good

  • FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.7+ based on standard Python type hints. It is built on top of Starlette for web framework capabilities and Pydantic for data validation and settings management. FastAPI is known for its excellent performance, automatic generation of interactive API documentation (with Swagger and Redoc), and support for asynchronous programming. Developers appreciate its ease of use, detailed documentation, and helpful error messages.

Recommended for

  • Developers building RESTful APIs
  • Teams looking for a high-performance ASGI-based web framework
  • Projects that require asynchronous programming capabilities
  • Applications needing automatic generation of interactive API documentation
  • Python developers who prefer utilizing type hints for code clarity and validation

replit videos

Repl.it SciTech Talk | MIT Arab SciTech 2019

More videos:

  • Review - KaBooM! by Swag Bags
  • Review - Kaboom Mold And Mildew With Bleach Review
  • Review - First Step Coding intro to Repl.it
  • Review - Kaboom Review with the Game Boy Geek

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

Category Popularity

0-100% (relative to replit and FastAPI)
Programming
100 100%
0% 0
Developer Tools
0 0%
100% 100
Text Editors
100 100%
0% 0
Web Frameworks
0 0%
100% 100

User comments

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Reviews

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

replit Reviews

  1. Monkeyman666
    · sysadmin at dagul ·
    Nice web hosting for small website [non production]

    easy setup.

    🏁 Competitors: Heroku
  2. very good for my kids

8 Best Replit Alternatives & Competitors in 2022 (Free & Paid) - Software Discover
Replit is a simple yet powerful online ide, editor, compiler, interpreter, and repl. Code, compile, run, and host in 50+ programming languages. The collaborative browser based ide – replit.
12 Best Online IDE and Code Editors to Develop Web Applications
Moreover, the moment you are ready with the code, it instantly goes live to the world. If you also want to learn about code, Replit has more than three million technologists, creatives, passionate programmers, and more. With real-time collaboration with your teams, your team will be more productive. Additionally, you can create applications, bots, etc., with the help of...
Source: geekflare.com
Best Online Code Editors For Web Developers
Replit allows users to write code and build apps and websites using a browser. The site also has various collaborative features, including capability for real-time, multiuser editing with a live chat feed.
Source: techarge.in

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.

Social recommendations and mentions

Based on our record, replit should be more popular than FastAPI. It has been mentiond 634 times since March 2021. 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.

replit mentions (634)

  • I've tried all (46 😵‍💫) AI Coding Agents & IDEs
    Replit AI Most advanced AI Agent for coding, in my opinion. Has two modes: Agent or Assistant. True full-stack app generator. Has its own server, DB, hosting... Here is the real app I built using it. - Source: dev.to / 11 days ago
  • Semantic Code Search
    We at Ducky.ai noticed a strange thing has happened in software development, we’re no longer writing code in the traditional sense. Instead, we describe what we want and ask the machine to write the first draft. Tools like GitHub Copilot, Cursor, Replit, and Devin have changed what it means to build. The keyboard isn’t gone, but it’s quieter. Developers are prompting, guiding, reviewing. Code appears in response... - Source: dev.to / 13 days ago
  • Product Engineers Should Ship Fast AND Secure Vibe Generated Code
    LLM coding assistants like Replit, Cursor, and more can be used to crank out code faster than any security expert can keep up. Automated application security scans while developing are the solution to this problem. - Source: dev.to / 17 days ago
  • Build Express.js APIs with AI - A Vibe Coding Solution for Backend
    Vibe coding tools are fantastic - they let you quickly create basic websites without coding skills. Tools like Replit, Lovable, and v0 do a great job helping non-technical folks build ideas using natural language. - Source: dev.to / 18 days ago
  • Level Up Your Coding Game with These Free Vibe Coding Tools!
    Replit's cloud-based IDE redefines collaborative coding with real-time multiplayer editing and instant environment setup. Its customizable workspace features integrated AI assistance (Ghostwriter), persistent containers, and seamless deployment capabilities. Developers can code in 50+ languages without local setups, while features like project templates and package management streamline prototyping. The platform's... - Source: dev.to / 21 days ago
View more

FastAPI mentions (289)

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What are some alternatives?

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

VS Code - Build and debug modern web and cloud applications, by Microsoft

Django - The Web framework for perfectionists with deadlines

Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.

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

Microsoft Visual Studio - Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.

Laravel - A PHP Framework For Web Artisans