Source: https://seerepo.com/r/react/react
Markdown source: https://seerepo.com/r/react/react.md
Description: react is built with Next.js and React and uses MCP. Its technologies, its figures and the file and line that prove each one.

# What's inside react/react

The library for web and native user interfaces.

JavaScript · MIT · 251,887 stars · GitHub: https://github.com/react/react

Read on October 27, 2026, at commit fd51cb1.

## Its free pages

- [What is react built with?](https://seerepo.com/r/react/react/built): react is built with Next.js and React and uses MCP.

## In figures

- 831,580 lines written
- 1,567 files
- 2,817 test files
- 3 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
[![react/react on SeeRepo](https://seerepo.com/badge/react/react.svg)](https://seerepo.com/r/react/react?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