Source: https://seerepo.com/r/gatsbyjs/gatsby
Markdown source: https://seerepo.com/r/gatsbyjs/gatsby.md
Description: gatsbyjs/gatsby is a JavaScript repo with 344,142 lines written. gatsby is built with React, Express, express-graphql, and 5 more and uses GitHub.

# What's inside gatsbyjs/gatsby

gatsbyjs/gatsby is a JavaScript repo with 344,142 lines written. gatsby is built with React, Express, express-graphql, and 5 more and uses GitHub.

Its description on GitHub: “React-based framework with performance, scalability, and security built in.”

JavaScript · MIT · 55,919 stars · GitHub: https://github.com/gatsbyjs/gatsby

Read on November 5, 2026, at commit 516700a.

## More on this repo

- [What is gatsby built with?](https://seerepo.com/r/gatsbyjs/gatsby/built): gatsby is built with React, Express, express-graphql, and 5 more and uses GitHub.
- [How much of gatsby did AI write?](https://seerepo.com/r/gatsbyjs/gatsby/ai): No AI tool signed any of the 21,540 commits of gatsby.

## In figures

- 344,142 lines written: The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
- 2,017 files: The same as the lines: product, tests, schemas and tooling. What’s generated doesn’t count.
- 1,688 test files: The files that test the code.
- 49 technologies: Each service with the file and line that prove it.

SeeRepo read the facts in its code and kept none of it. AI only helps sort its packages and folders by their names, and never sees its code.

## Frequently asked questions

### What is gatsbyjs/gatsby?

gatsbyjs/gatsby is a JavaScript repo with 344,142 lines written. Its description on GitHub: “React-based framework with performance, scalability, and security built in.”

The proof: [its page on GitHub](https://github.com/gatsbyjs/gatsby)

### What is gatsby built with?

gatsby is built with React, Express, express-graphql, and 5 more and uses GitHub.

The proof: [each service with its file and line](https://seerepo.com/r/gatsbyjs/gatsby/built)

### What license does gatsby have?

gatsby is released under the MIT license.

The proof: [its page on GitHub](https://github.com/gatsbyjs/gatsby)

### How many stars does gatsby have on GitHub?

gatsby had 55,919 stars on GitHub on November 5, 2026.

The proof: [its page on GitHub](https://github.com/gatsbyjs/gatsby)

## Add this badge to your README

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

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

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.