Runtime Libraries

Build production-ready applications in TypeScript

[Beta] Video.js v10 - open source media player framework for Web and React.

Open-source React component framework implementing Google's Material Design.

🤖 Powerful asynchronous state management, server-state utilities and data fetching for the web. TS/JS, React Query, Solid Query, Svelte Query and Vue Query.

Open-source unstyled UI components for accessible web applications.

We write your reusable computer vision tools. 💜

A modern runtime for JavaScript and TypeScript.

Next-generation ORM for Node.js & TypeScript | PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB

The headless rich text editor framework for web artisans.

SnapDOM: Next-generation DOM capture to whatever engine — fast, modular, extensible.

Open-source WYSIWYG .docx editor for React with canonical OOXML, tracked changes, and real-time collaboration.

Components for the Lyne design system.

📋 React Hooks for form state management and validation (Web + React Native)

Open-source Tailwind CSS component library for building web interfaces.

Library for building web and native user interfaces.

TypeScript-first schema validation with static type inference

A React component for building Web forms from JSON Schema.

React Flow | Svelte Flow - Powerful open source libraries for building node-based UIs with React (https://reactflow.dev) or Svelte (https://svelteflow.dev). Ready out-of-the-box and infinitely customizable.

Open-source React and React Native UI framework with compiler optimizations.

Open design system and component library.

Open-source accessible UI components for React, Vue, Solid, and Svelte.

Open-source Vue component library for accessible design systems and web apps.

Open-source React component system for building accessible SaaS interfaces.

Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.

💌 Build and send emails using React

Open-source React framework for accessible and responsive application UI.

Modern data layer for TypeScript apps - type-safe ORM, built-in access control, automatic query services

Open source full calendar alternative for React with scheduling and recurring events.

Make your JSON data collaborative and version-controlled with CRDTs

Open-source runtime for math with CPU and GPU execution, CLI install, and browser access.

Open-source Angular UI component library based on Ant Design.

Material Design Web Components

Write file storage code once. Run it against local files, S3, SFTP, or Azure.

TypeScript & JavaScript ORM for Node.js — supports PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, Oracle, and more.

Go language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets

Skeleton is an adaptive design system powered by Tailwind CSS.

Shared data types for building collaborative software

A completely customizable framework for building rich text editors. (Currently in beta.)

Open-source Vue 3 component library with TypeScript and theme customization.

Raaghu Design System – React is an open-source design system for modern Web and Power Apps applications. Built for the web and extendable to Microsoft’s Power Apps Component Framework (PCF), it offers reusable components

Open-source React design system and UI component library.

MJML: the only framework that makes responsive-email easy

Ebean ORM is an source-visible Java tool tracked for runtime libraries signals, maintenance activity, and public release evidence.

State machines, statecharts, and actors for complex logic

A free and open source framework for building powerful, fast, elegant 2D and 3D apps that run on macOS, Windows, Linux, iOS, Android, and web with a single Go codebase, allowing you to Code Once, Run Everywhere.

Universal icon framework. One syntax for FontAwesome, Material Design Icons, DashIcons, Feather Icons, EmojiOne, Noto Emoji and many other open source icon sets (over 150 icon sets and 200k icons). SVG framework, React, Vue and Svelte components!

Open-source Tailwind CSS component collection for web application interfaces.

Universal document viewer for the web — open-source, framework-agnostic viewer powered by a built-from-scratch WebAssembly engine for high-fidelity rendering across PDF, DOCX, PPTX, and images.

Open-source React UI component library for application interfaces.

Business logic with ease ☄️

Beginner friendly graphics powered by WebGPU, optimized for interactive art!

Automatic multi-tenancy for Laravel. No code changes needed.

Declarative validation framework.

Open-source PDF generation library built with TypeScript and React. Features a WYSIWYG template designer, PDF viewer, and powerful generation capabilities. Create custom PDFs effortlessly in both browser and Node.js environments.

Headless spreadsheet calculation engine for business web apps.

Open-source React UI component library and design system.

✅ Headless form validation library for Vue.js

Search UI components for React and Vue

📝 JSON powered / Dynamic forms for Angular

JSON Schema-based form framework for React, Angular, and Vue.

Making SvelteKit forms a pleasure to use!

Actor-based framework for event-driven architecture in Go.

Building event-driven applications the easy way in Go.

The lean application framework for Python. Build sophisticated user interfaces with a simple Python API. Run your apps in the terminal and a web browser.

Free and open-source chat SDK. Build fast, real-time apps and generative AI agents with a high-performance, customizable, cross-platform UI.

Drizzle ORM is an source-visible TypeScript tool tracked for runtime libraries signals, maintenance activity, and public release evidence.

UI components and hooks for building video/audio players on the web. Robust, customizable, and accessible. Modern alternative to JW Player and Video.js.

Linux Library for low speed IO Communication in C with bindings for C++, Python, Node.js & Java. Supports generic io platforms, as well as Intel Edison, Intel Joule, Raspberry Pi and many more.

Open-source UI component framework built on Tailwind CSS.

Official Svelte components built for Flowbite and Tailwind CSS

🧩 Content editing tech stack for the web - BlockSuite is a toolkit for building editors and collaborative applications.

A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)

Framework-agnostic form state management framework.

Open-source library for building themeable React applications.

Run multiple websites using the same Laravel installation while keeping tenant specific data separated for fully independent multi-domain setups, previously github.com/hyn/multi-tenant