The Best Python Web App Frameworks in 2025

1. streamlit

   1 323 42,767 9.9 Python

   Streamlit — A faster way to build and share data apps.

   

   Streamlit

2. Stream

   getstream.io featured

   Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.

   

3. py-shiny

   2 32 1,664 9.0 Python

   Shiny for Python

   

   Streamlit is one such tool that offers a simple, Pythonic approach. However, it suffers from two main weaknesses: the script needs to be re-run after every user interaction, and customizing the look and feel of a Streamlit app is dificult. Shiny for Python is a great alternative for building dashboards and small data-backed apps. Shiny only re-renders code as necessary - not the entire script, and offers more flexibility in styling your app. NiceGUI offers a similar approach, but with less intuitive code and no tutorials or live examples, is more of a challenge to get started with. Reflex is a great option if you want more flexibility in building your app's UI, but you'll need to learn a bit of traditional web development.

4. reflex

   3 88 27,821 9.8 Python

   🕸️ Web apps in pure Python 🐍

   

   Streamlit is one such tool that offers a simple, Pythonic approach. However, it suffers from two main weaknesses: the script needs to be re-run after every user interaction, and customizing the look and feel of a Streamlit app is dificult. Shiny for Python is a great alternative for building dashboards and small data-backed apps. Shiny only re-renders code as necessary - not the entire script, and offers more flexibility in styling your app. NiceGUI offers a similar approach, but with less intuitive code and no tutorials or live examples, is more of a challenge to get started with. Reflex is a great option if you want more flexibility in building your app's UI, but you'll need to learn a bit of traditional web development.

5. nicegui

   4 189 14,956 9.8 Python

   Create web-based user interfaces with Python. The nice way.

   

   Streamlit is one such tool that offers a simple, Pythonic approach. However, it suffers from two main weaknesses: the script needs to be re-run after every user interaction, and customizing the look and feel of a Streamlit app is dificult. Shiny for Python is a great alternative for building dashboards and small data-backed apps. Shiny only re-renders code as necessary - not the entire script, and offers more flexibility in styling your app. NiceGUI offers a similar approach, but with less intuitive code and no tutorials or live examples, is more of a challenge to get started with. Reflex is a great option if you want more flexibility in building your app's UI, but you'll need to learn a bit of traditional web development.

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