freecodecamp-curriculum
freeCodeCamp Curriculum & Platform Development
Skill by ara.so — Daily 2026 Skills collection.
freeCodeCamp.org is a free, open-source learning platform with thousands of interactive coding challenges, certifications, and a full-stack curriculum. The codebase includes a React/TypeScript frontend, Node.js/Fastify backend, and a YAML/Markdown-based curriculum system.
Architecture Overview
freeCodeCamp/
├── api/ # Fastify API server (TypeScript)
├── client/ # Gatsby/React frontend (TypeScript)
├── curriculum/ # All challenges and certifications (YAML/Markdown)
│ └── challenges/
│ ├── english/
│ │ ├── responsive-web-design/
│ │ ├── javascript-algorithms-and-data-structures/
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