2026Rio Labsopen source
Rio
v0.12
Rio is a declarative UI framework that allows developers to build modern web and local applications using only Python. It eliminates the need for HTML, CSS, or JavaScript by providing a suite of built-in components and a reactive state management system.
100% Python-based development with no HTML, CSS, or JS required
Declarative UI framework with over 50 built-in components
Type-safe architecture for better IDE support and error highlighting
pricingFree and Open Source
version0.12