Open source. Open possibilities.

Franken UI (franken-ui/ui) is described as an HTML-first UI component library built on UIkit 3, extended with LitElement and inspired by shadcn/ui. Its README now only announces a move to 0build, so documentation lives elsewhere.

An 'awesome' list collecting JavaScript frameworks, web component libraries, UI component libraries for React, Vue, Angular, and more, mobile UI components, admin templates, and icon libraries. It includes GitHub star and npm download badges, and covers both active and historically significant projects.

MediaPipe is Google's cross-platform framework and suite of on-device machine learning solutions for live and streaming media, covering vision, text and audio tasks on Android, iOS, web, desktop and edge devices.

Ruby on Rails is a full-stack web application framework that follows the MVC pattern. It includes Active Record for database modeling, Action Pack for routing and controllers, Action View for templating, and additional libraries for mailers, jobs, WebSockets, file storage, and rich text handling. It enables rapid development of database-backed web applications.

Numl is a deprecated UI design language, web-component library and runtime CSS framework for quickly building interfaces that follow a design system, loadable with a single JavaScript module and no bundler or config.

Sparkle 2 is a secure software update framework for macOS that provides seamless, fast, and reliable application updates with sandboxing, delta updates, and customizable user interfaces.

Reflex is a library for building full-stack web applications using pure Python, eliminating the need for JavaScript for frontend development.

Django is a high-level Python web framework for rapid development and clean, pragmatic design. Includes installation docs, tutorials, deployment guides, community links, contribution info, and test suite instructions.

Textual is a lean Python framework for building cross-platform terminal and browser user interfaces with a simple API, widgets, CSS-like styling, async support, and a dev console.

Elysia is an ergonomic TypeScript web framework powered by Bun, focusing on end-to-end type safety and developer experience.

Spring Boot is an opinionated, production-grade framework for building stand-alone Spring-based Java applications and services. It offers embedded servers, security, metrics, health checks, and simplified configuration, with no code generation or XML requirements.

Open-source disassembly framework written in pure C, supporting 20+ architectures including x86, ARM, AArch64, RISC-V, MIPS and PowerPC, with a clean architecture-neutral API, multi-language bindings, and detailed instruction semantics for binary analysis and reverse engineering.

Material Design for Bootstrap is a free UI kit offering 700+ components, themes, and templates for building responsive, mobile-first websites. Available for jQuery, Angular, React, and Vue under MIT license.

Laravel Plausible is a Laravel package that integrates the Plausible Analytics API, providing facades to retrieve realtime visitors, aggregates, time series, and breakdowns, with configurable caching and simple Composer installation.

Laravel is a PHP web application framework with expressive syntax, providing routing, ORM, dependency injection, queues, and real-time broadcasting.

Vue 2 is a progressive JavaScript framework for building user interfaces. It reached End of Life on December 31, 2023 and no longer receives features, updates or fixes. New projects are directed to Vue 3 (vuejs/core); the repository remains available through existing distribution channels.

ice.js 是阿里巴巴开源的基于 React 的渐进式应用框架，提供零配置开发体验，支持 TypeScript、Sass、CSS Modules 等，内置文件系统路由、状态管理与请求方案，支持 SSG/SSR 混合渲染、插件系统，并可同时构建 Web、小程序与 Weex 多端应用。

A pure Python, asynchronous interface for the Telegram Bot API, providing both a direct API wrapper and high-level tools for bot development.

A documentation framework built on MkDocs: write in Markdown and produce a searchable, customizable static site in minutes, with responsive layouts, 60+ languages and MIT licensing.

API Platform is a next-generation web framework installer that scaffolds API-first projects with REST/GraphQL APIs, auto-generated documentation, admin interfaces, and Jamstack client apps built on Symfony and React.