nvm: The Node.js Version Management Standard with 95k Stars

Install and instantly switch between multiple Node.js versions with a single command. When projects require different runtimes, manage versions in isolation at the shell level without touching system-wide settings.

It works in POSIX-compatible shells (bash, zsh, etc.) and automatically loads the correct version upon entering a directory via .nvmrc files. It supports flexible configurations such as migrating global packages between versions and specifying mirror sources.

A standard tool verified on Unix, macOS, and Windows WSL environments. It is essential for developers who prefer terminal-centric workflows without complex GUIs or need precise control over Node versions in CI/CD pipelines.