Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
All Packages
Category
Sort:Used by Most Apps
Vite
Next-generation frontend build tool with an instant dev server, lightning-fast HMR, and optimized production builds.
postcss
A CSS transformation engine that parses styles into an AST, letting JS plugins lint, prefix, and rewrite CSS — the foundation beneath Autoprefixer, Tailwind, and 200+ other tools.
Express
The fast, unopinionated, minimalist web framework for Node.js
Next.js
The React framework for production: file-based routing, server rendering, and Rust-powered builds.
sharp
High-performance Node.js image processing powered by libvips, built for fast resizing and format conversion.
Pydantic
Data validation and settings management using Python type hints, backed by a Rust core.
FastAPI
A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.
undici
A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies
Hono
A small, ultrafast web framework built on Web Standards that runs identically everywhere.
TanStack Router
A fully type-safe React router with built-in data loading, caching, and URL search-param validation.
urllib3
A powerful, user-friendly HTTP client for Python with thread-safe connection pooling, TLS verification, and retry handling.
proxy-agent
Maps HTTP, HTTPS, SOCKS, and PAC proxy protocols to the correct Node.js http.Agent implementation automatically.
Socket.IO
Bidirectional, low-latency, event-based realtime communication for Node.js and the browser.
@clickhouse/client
The official TypeScript client for connecting Node.js applications to ClickHouse over HTTP.
Guzzle
An extensible PHP HTTP client for sending requests and integrating with web services
NestJS
A progressive Node.js framework for building efficient, scalable, and maintainable server-side applications in TypeScript.
Expo
Open-source framework for building universal native apps with React that run on Android, iOS, and the web.
Bootstrap
The world's most popular front-end framework for building responsive, mobile-first sites
Ant Design
An enterprise-class React UI library with 80+ high-quality, TypeScript-typed components and powerful theming.
Fastify
A fast and low-overhead web framework for Node.js, built around schema-based validation and a plugin architecture
Gin
A high-performance HTTP web framework for Go, built on a zero-allocation radix-tree router with an Express.js-style API.
SvelteKit
The official application framework for Svelte, providing filesystem routing, server rendering, and adapters for any deployment target.
LangChain
The most widely adopted Python framework for building LLM-powered agents and applications
Laravel
The expressive, elegant PHP framework for building modern web applications
