What's inside jestjs/jest

jestjs/jest is a TypeScript repo with 195,068 lines written. jest is built with React and react.

Built with 2
jestTypeScript · MIT
lines written
195,068
product files
413
test files
1,729
GitHub stars
45,474

Read on November 10, 2026, at commit 7261444.See each one with its proof

The card says what it's built with. Its whole map opens it up: every part of the code and how it connects to the rest.

How much of jest did AI write?

0%

No AI tool signed any of the 7,528 commits of jest.

Signed by an AIWithout one

Who writes it

Frequently asked questions

What is jestjs/jest?
jestjs/jest is a TypeScript repo with 195,068 lines written. Its description on GitHub: “Delightful JavaScript Testing.”

The proof: its page on GitHub

What is jest built with?
jest is built with React and react.

The proof: each service with its file and line

What license does jest have?
jest is released under the MIT license.

The proof: its page on GitHub

How many stars does jest have on GitHub?
jest had 45,474 stars on GitHub on November 10, 2026.

The proof: its page on GitHub

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