Top Python Libraries

Top Python Libraries

Panel: 5.3k-Star Python Lib to Build Web Apps with Charts & Widgets

Panel: Build Python Web Apps Fast - No JS Needed! 5.3k★ Open-Source Library for Dashboards & Data Tools

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Meng Li
Aug 05, 2025
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If you're like me, working on Python data visualization and wanting to create interactive tools on the side without learning JS, then you absolutely need to know Panel.

This thing is literally "writing frontend + backend with Python" — a full-stack, one-stop solution that's perfect for lazy people and large projects alike.

What is Panel

Panel is an open-source Python library that can quickly "assemble" various charts, tables, and widgets into a complete web application.

Built on Tornado under the hood, using Bokeh and other visualization libraries for the frontend, integrated with Param (parameter management), templates, and deployment solutions, it can connect with almost all mainstream tools in the PyData ecosystem.

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