npm is the default package manager for Node.js and is used by millions of developers worldwide. It's well-known for its vast library of packages and ease of use. One of the key benefits of using npm is that it comes pre-installed with Node.js, which means that you don't have to install it separately.
Yarn is a newer package manager that was created by Facebook to solve some of the issues with npm, particularly around speed and stability. Yarn uses a shared cache and parallel installation to speed up the process of installing packages. It also has a lockfile, which ensures that the same versions of packages are installed across all machines.
pnpm is a relatively new package manager that takes a different approach to package installation. Rather than installing each package separately, pnpm creates a single shared folder for all packages, which reduces disk space usage and speeds up installation times. It also has a caching mechanism that allows it to reuse packages across different projects, further reducing disk space usage.
When to use which?
Use npm if:
Use yarn if:
Use pnpm if: