







An open standard for building modern, composable and accessible UI components.
Ideas on modernizing the open-source desktop
Scott Jenson has been working on user interfaces (UIs) and user experience (UX) for many years [...]
Open Props UI | A modern CSS UI library
CSS UI library leveraging the most modern features. Components you can copy and paste into your project.



A new, modern UI component library built on top of Base UI - coss ui
Built for developers and AI.


Zag - Rapidly build UI components without sweating over the logic.
State machines for accessible, interactive and performant UI components

A Practical Guide To Naming Things — Smashing Magazine
A practical guide to naming UI components, with useful resources, naming conventions, and structures.
Origin UI - Svelte
An extensive collection of copy-and-paste Svelte components for quickly building app UIs.

Melt UI
An open-source Svelte component library for building high-quality, accessible design systems and web apps.

The Foundation for your Design System
A set of beautifully designed components that you can customize, extend, and build on. Start here then make it your own. Open Source. Open Code.

Radix UI
Components, icons, and colors for building high‑quality, accessible UI. Free and open-source.
OpenUI - The Open Standard for Generative UI
Full-stack, renderer-agnostic Generative UI with a streaming-first language, official React support, community integrations, and up to 67% fewer tokens than JSON.

Svelte Magic UI Components
Svelte Magic UI - A collection of components that will make your application look magical.

Introducing the Accessible Components Library - TetraLogical
We've open-sourced our Accessible Components Library, and, as you might expect, this includes the HTML, CSS, and JavaScript code. But, we thought, "Why stop there?" So, we've also published our documentation, including the accessibility requirements, test scenarios, and even the working automated tests which validate each one.

Issues in Component Computing: A Synthetic Review
This paper provides a review of the rhetoric behind the component movement in educational software, and a critical analysis and synthesis of issues underlying the movement. We draw on case studies ...
