Fast, disk space efficient package manager: Fast. Up to 2x faster than the alternatives (see benchmark). Efficient. Files inside node_modules are linked from a single content-addressable storage. Great for monorepos. Strict. A package can access only dependencies that are specified in its package.json. Deterministic. Has a lockfile called pnpm-lock.yaml. Works everywhere. Supports Windows, Linux, and macOS. Battle-tested. Used in production by teams of all sizes since 2016.