Flask Framework Alternatives

Flask Framework is described as 'Flask is a lightweight web application framework written in Python and based on the Werkzeug WSGI toolkit and Jinja2 template engine. There is no database abstraction layer, form validation, or any other components where third-party libraries already exist to provide common' and is an app in the development category. There are more than 10 alternatives to Flask Framework for a variety of platforms, including Linux, Windows, Mac, Self-Hosted and Python apps. The best Flask Framework alternative is Django, which is both free and Open Source. Other great apps like Flask Framework are ASP.NET, FastAPI, Frappe Framework and Reflex Framework.

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Alternatives list

  1. Django icon

    Django

     117 likes
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    Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design. Built by experienced developers, it takes care of much of the hassle of Web development, so you can focus on writing your app without needing to reinvent the wheel.

    49 Django alternatives

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Python
     

    • Django is the most popular Windows, Mac & Linux alternative to Flask Framework.

    • Django is the most popular Open Source & free alternative to Flask Framework.

    • Django is Free and Open SourceFlask Framework is also Free and Open Source
    • Django is Security-focusedFlask Framework is not according to our users
  2. ASP.NET icon

    ASP.NET

     32 likes
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    Asp.net is an open source server-side Web application framework designed for Web development to produce dynamic Web pages, web sites, apps and services with HTML, CSS and JavaScript. You can also create Web APIs, mobile sites, use real-time technologies like Web Sockets and more!

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    ASP.NET screenshot 1
     
  4. FastAPI icon

    FastAPI

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

    21 FastAPI alternatives

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    FastAPI screenshot 1
    FastAPI screenshot 2
    FastAPI screenshot 3
     
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    2
    Comments about FastAPI as an Alternative to Flask Framework
    Guest
    Positive
    0

    It is very quick and easy to bootstrap a performant API with adequate responses, error handling and I/O validation

    Review by a new / low-activity user.
    lsglucas
    Positive
    0

    In my opinion, FastAPI wins over Flask because it has major features that are incredibly useful such as the Swagger UI Generator, compatibility with async.

    Review by a new / low-activity user.
    Flask Framework Icon
    FastAPI icon

    • FastAPI is the most popular Self-Hosted alternative to Flask Framework.

    • FastAPI is Free and Open SourceFlask Framework is also Free and Open Source
  7. ViUR.is icon

    ViUR.is

     6 likes
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    ViUR – the Information System for the Google App Engine™ plattform – is a »sandbox« for designers and developers. With the help of ViUR you can easy build web applications running on Google's infrastructure.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    /vi Administration
     
  9. Pyramid icon

    Pyramid

     9 likes
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    Pyramid is an open source web framework written in Python and is based on WSGI. It is a minimalistic web framework inspired by Zope, Pylons and Django.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Python
     

    • Pyramid is the most popular Web-based alternative to Flask Framework.

    • Pyramid is Free and Open SourceFlask Framework is also Free and Open Source
  10. Crow icon

    Crow

     3 likes
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    Crow is a C++ microframework for running web services. It uses routing similar to Python's Flask which makes it easy to use. It is also extremely fast, beating multiple existing C++ frameworks as well as non C++ frameworks.

    8 Crow alternatives

    Cost / License

    • Free
    • Open Source

    Platforms

    • Windows
    • Linux
    • Self-Hosted
     
  11. Sinatra icon

    Sinatra

     7 likes
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    Sinatra is a free and open source software web application library and domain-specific language written in Ruby. It is an alternative to other Ruby web application frameworks such as Ruby on Rails, Merb, Nitro, Camping, and Rango. It is dependent on the Rack web server interface.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Ruby
    Sinatra screenshot 1
     
  12. jam-py icon

    jam-py

     4 likes
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    The jam.py is an object-oriented, event-driven framework with hierarchical structure. All this, in combination with very tight DB/GUI coupling, is the base for the DRY (don't repeat yourself) principle that is underlying the framework.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    Master-child table underneath, with double click on the child table will open a form.
     
  13. Bottle icon

    Bottle

     2 likes
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    Bottle is a fast, simple and lightweight WSGI micro web-framework for Python. It is distributed as a single file module and has no dependencies other than the Python Standard Library.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Python
     
  14. Pylons Framework icon

    Pylons Framework

     2 likes
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    Pylons Framework is an open source Web application framework written in Python. It makes extensive use of the Web Server Gateway Interface standard to promote reusability and to separate functionality into distinct modules.

    Cost / License

    • Free
    • Open Source

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
     
12 of 19 Flask Framework alternatives