Flask Alternatives

Flask is described as '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 for a variety of platforms, including Windows, Linux, Mac, Self-Hosted and Python apps. The best Flask alternative is Django, which is both free and Open Source. Other great apps like Flask are ASP.NET, FastAPI, Reflex Framework and Crow.

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Flask alternatives are mainly Software Frameworks but may also be CMS Tools. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Flask.
Flask iconFlask
  31
  • FreeOpen Source
  • ...

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...

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Flask alternatives page was last updated Jul 14, 2024
  1. Django icon
     112 likes

    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

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Python

    Django Features

    1.  OOP
    2.  Content syndication
    3.  Python-based
    4.  Access Control
    Django iconFlask Icon

    Django VS Flask

    Is Django a good alternative to Flask?
     
    • Django is the most popular Windows, Mac & Linux alternative to Flask.

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

    • Django is Free and Open SourceFlask is also Free and Open Source
  2. ASP.NET icon
     31 likes

    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!

    52 ASP.NET alternatives
    ASP.NET screenshot 1

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux

    ASP.NET Features

    1.  Server-side
    2.  Rad
    3.  NET Framework
    ASP.NET iconFlask Icon

    ASP.NET VS Flask

    Is ASP.NET a good alternative to Flask?
     
  3. FastAPI icon
     20 likes

    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
    FastAPI screenshot 1
    FastAPI screenshot 2
    +1
    FastAPI screenshot 3

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted

    FastAPI Features

    1.  Asynchronous
    2.  OpenAPI integration
    3.  REST API
    FastAPI iconFlask Icon

    FastAPI VS Flask

    Is FastAPI a good alternative to Flask?
     
    Comments about FastAPI as an Alternative to Flask
     
    Guest

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

    Positive commentApr 12, 2021
    0
    lsglucas

    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.

    Positive commentJun 6, 2021
    0
    Flask Icon
    FastAPI icon
    • FastAPI is the most popular Self-Hosted alternative to Flask.

    • FastAPI is Free and Open SourceFlask is also Free and Open Source
  4. Reflex Framework icon
     2 likes

    Web apps in pure Python.

    3 Reflex Framework alternatives
    Reflex Framework screenshot 1

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Python
    Reflex Framework iconFlask Icon

    Reflex Framework VS Flask

    Is Reflex Framework a good alternative to Flask?
     
  5. Crow icon
     3 likes

    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

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Windows
    • Linux
    • Self-Hosted
    Crow iconFlask Icon

    Crow VS Flask

    Is Crow a good alternative to Flask?
     
  6. ViUR.is icon
     6 likes

    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.

    27 ViUR.is alternatives
    /vi Administration

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted

    ViUR.is Features

    1.  Rad
    2.  Sandbox
    3. Google Drive icon  Google Drive integration
    4.  Shopping Cart
    ViUR.is iconFlask Icon

    ViUR.is VS Flask

    Is ViUR.is a good alternative to Flask?
     
  7. Pyramid icon
     9 likes

    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.

    32 Pyramid alternatives

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Python
    Pyramid iconFlask Icon

    Pyramid VS Flask

    Is Pyramid a good alternative to Flask?
     
    • Pyramid is the most popular Web-based alternative to Flask.

    • Pyramid is Free and Open SourceFlask is also Free and Open Source
  8. TurboGears icon
     6 likes

    TurboGears 2 is built on top of the experience of several next generation web frameworks including TurboGears 1 (of course), Django, and Rails. All of these frameworks had limitations that frustrated us, and TG2 was built as an answer to that frustration:

    14 TurboGears alternatives

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Python
    TurboGears iconFlask Icon

    TurboGears VS Flask

    Is TurboGears a good alternative to Flask?
     
  9. Sinatra icon
     7 likes

    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.

    8 Sinatra alternatives
    Sinatra screenshot 1

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Ruby
    Sinatra iconFlask Icon

    Sinatra VS Flask

    Is Sinatra a good alternative to Flask?
     
  10. jam-py icon
     4 likes

    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.

    12 jam-py alternatives
    Master-child table underneath, with double click on the child table will open a form.

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted

    jam-py Features

    1.  SQLite
    2.  Dockerized
    jam-py iconFlask Icon

    jam-py VS Flask

    Is jam-py a good alternative to Flask?
     
  11. Bottle icon
     2 likes

    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.

    7 Bottle alternatives

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Python
    Bottle iconFlask Icon

    Bottle VS Flask

    Is Bottle a good alternative to Flask?
     
  12. Pylons Framework icon
     2 likes

    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.

    32 Pylons Framework alternatives

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    Discontinued

    "It's highly recommended that new projects start with the new merged web framework, Pyramid."https://pylonsproject.org/about-pylons-framework.html

    Pylons Framework iconFlask Icon

    Pylons Framework VS Flask

    Is Pylons Framework a good alternative to Flask?
     
12 of 19 Flask alternatives