A powerful cross-platform UI toolkit for building native-quality iOS, Android, and Progressive Web Apps with HTML, CSS, and JavaScript.
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The adaptive interface system for modern web experiences.
- design-systems
- design-architecture
- component-architecture
- component-library
Deprecated in favour of Video.js 10; security fixes only until January 2028. UI components and hooks for building video and audio players on the web.
- player
- web-components
- html
- javascript
A very lightweight and flexible accessible modal dialog script.
- dialog
- modal
- accessibility
- a11y
AgnosticUI Local (v2) is a CLI-based UI component library that copies components directly into your project. Works with AI tools, agent-driven UIs, and prompt-ready workflows.
A collection of generic web components with a focus on accessibility, and ease of use
Enterprise UI Components - Grid, Scheduler, Gantt, Kanban & more. Works with Angular, React, NextJS, Vue, Vanilla Javascript and .NET Blazor
- web-components
- angular
- datagrid
- grid
A monorepo containing the packages for Esri's Calcite Design System
- typescript
- design-system
- ui
- stenciljs
Material 3 Expressive Web Components
- lit
- material-3-expressive
- material-design
- material-you
Monorepo of HAX web components built with Lit and the DDD design system, published to npm as @haxtheweb/*
- monorepo
- webcomponents
- hax
- haxcms
⚡️ Progressively enhance image placeholders once they are in the viewport
- progressive-image
- image-loading
- web-components
- custom-elements
Modern Accessible WYSIWYG rich text editor built as a framework-agnostic Web Component that works everywhere.
🎚 A cross browser customizable and accessible <range-slider> web component
- range-slider
- ui
- multi-thumb
- web-components
A standalone, isolated, self-hostable, plug-in custom element for viewing and editing PDF files, based on the PDF.js Firefox built-in viewer
- pdfjs
- pdf-viewer
- javascript
- web-component
A collection of accessible, free, open-source web components for building Brightspace applications.
- web-components
- lit-element
- ui
🧬 Progressive Web Components.
- webcomponents
- custom-elements
- light-dom
- builtin-custom-elements