Source: https://seerepo.com/r/freeCodeCamp/freeCodeCamp
Markdown source: https://seerepo.com/r/freeCodeCamp/freeCodeCamp.md
Description: freeCodeCamp is built with Gatsby and React and uses MongoDB, Stripe, and Sentry. Its technologies, its figures and the file and line that prove each one.

# What's inside freeCodeCamp/freeCodeCamp

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

TypeScript · BSD-3-Clause · 457,981 stars · GitHub: https://github.com/freeCodeCamp/freeCodeCamp

Read on October 26, 2026, at commit c137407.

## Its free pages

- [What is freeCodeCamp built with?](https://seerepo.com/r/freeCodeCamp/freeCodeCamp/built): freeCodeCamp is built with Gatsby and React and uses MongoDB, Stripe, and Sentry.

## In figures

- 224,694 lines written
- 668 files
- 335 test files
- 5 technologies

SeeRepo read its code facts-only: no AI, and none of its code is kept.

## Add this badge to your README

It links to this page and updates itself each time SeeRepo reads the repo.

```markdown
[![freeCodeCamp/freeCodeCamp on SeeRepo](https://seerepo.com/badge/freeCodeCamp/freeCodeCamp.svg)](https://seerepo.com/r/freeCodeCamp/freeCodeCamp?de=insignia)
```

## What is your repo built with?

SeeRepo draws your repo as a living map, and tells you this about it. https://seerepo.com/start