Corepack is a Node.js tool that serves as a bridge between Node.js projects and package managers like yarn, pnpm, and npm. It comes pre-installed in Node.js versions 16.9.0 and later, but can be activated manually in earlier versions.

The primary purpose of Corepack is to ensure that developers use the package manager versions that are specified in a project’s package.json file under the packageManager field, ensuring consistency across different development environments.

Corepack helps developers avoid issues related to version mismatches among package managers across different machines, making it easier to manage dependencies in a consistent manner.