freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

Curated coding interview preparation materials for busy software engineers

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

The open source coding agent.

A utility-first CSS framework for rapid UI development.

🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

Build full-stack apps on your own infrastructure.

🎒 Token-Oriented Object Notation (TOON) – Compact, human-readable, schema-aware JSON for LLM prompts. Spec, benchmarks, TypeScript SDK.

💌 Build and send emails using React

Generate RFC-compliant UUIDs in JavaScript

svg react icons of popular icon packs

The React documentation website

OpenTUI is a library for building terminal user interfaces (TUIs)

▦ Universal, standards-based auth provider.

An open-source database of AI models.

Aesthetic, minimalist platform for learning Japanese inspired by Duolingo and Monkeytype.