Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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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.
Mermaid
Generate flowcharts, sequence diagrams, and 20+ other diagram types from markdown-like text
React Flow
A highly customizable React library for building node-based editors, diagrams, and interactive flow charts.
FastAPI
A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.
Chart.js
Simple, flexible JavaScript charting for designers and developers
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.
Prisma Client
Auto-generated, type-safe database client for Node.js and TypeScript.
Dagre
Automatic layout engine for directed graphs in JavaScript