A fast and simple Node.js version manager built in Rust, supporting cross-platform development.
fnm (Fast Node Manager) is a Node.js version manager built in Rust that allows developers to quickly install, switch, and manage multiple Node.js versions. It solves the problem of handling different Node.js versions across projects with a focus on speed and cross-platform compatibility.
Node.js developers working on multiple projects requiring different Node.js versions, especially those using macOS, Windows, or Linux who value performance and simplicity.
Developers choose fnm for its blazing-fast performance due to being written in Rust, easy installation process, and seamless integration with existing version files like `.nvmrc` and `.node-version`.
🚀 Fast and simple Node.js version manager, built in Rust
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Built with Rust, fnm ensures instant startup and rapid version switching, as emphasized in the README's focus on speed and the 'Blazing fast!' branding.
Works consistently on macOS, Windows, and Linux with easy installation via package managers like Homebrew, Winget, or single-file scripts, reducing setup friction.
Automatically reads .node-version and .nvmrc files to switch Node.js versions when entering project directories, streamlining multi-project workflows.
Integrates seamlessly with Bash, Zsh, Fish, PowerShell, and even provides workarounds for Windows Command Prompt, covering most developer environments.
Requires users to manually edit shell profiles (e.g., .bashrc, .zshrc) for setup, which can be error-prone and less intuitive for beginners or automated deployments.
The README explicitly states that support for Windows Command Prompt is 'not entirely covered,' necessitating additional scripts or reliance on modern shells like PowerShell.
On macOS, the script-based installation is deprecated in favor of Homebrew, which may confuse users and add complexity for those preferring curl-based setups.
fnm is an open-source alternative to the following products: