UI GitHub Repositories (2026) · Open Source Tools

Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.

end to end app store screenshot creation using AI

Penpot: The open-source design platform for Product teams that need scalable collaboration.

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

Lint the rendered UI: catches overflowing text, low contrast, overlaps, broken responsive layouts, emoji icons and more in any web framework. Built for AI coding agents.

Build and share delightful machine learning apps, all in Python. 🌟 Star to support our work!

Cross-platform UI framework for Rust: styled property system, data binding, XAML, control themes and a composition renderer. A port of Avalonia.

Liquid Glass for the Android View system — real SDF refraction, physical dispersion, sensor-driven specular. Drop into existing XML layouts, no Compose required. API 24+

Unstyled UI components for building accessible web apps and design systems. From the creators of Radix, Floating UI, and Material UI.

The world's first open-source AI-native vector design tool and the first to feature concurrent Agent Teams. Design-as-Code. Turn prompts into UI directly on the live canvas. A modern alternative to Pencil.

The library for web and native user interfaces.

Property-based testing for web and terminal UIs

:computer: C++ Functional Terminal User Interface. :heart:

Fullstack app framework for web, desktop, and mobile.

RYUX gives AI agents the design intelligence to understand product context, make intentional design decisions, and evaluate what they create.

ReaLTaiizor is a .NET WinForms control library that offers a wide range of components and is user-friendly and design-focused.

Podman Desktop is the best free and open source tool to work with Containers and Kubernetes for developers. Get an intuitive and user-friendly interface to effortlessly build, manage, and deploy containers and Kubernetes — all from your desktop.

A React-based UI toolkit for the web

A high performance rust-powered UI layout library

A frontend library for React and Vue that helps developers quickly build fast, accessible, and beautiful storefronts. Made with 💚 by Vue Storefront team and contributors.