fnm

fnm (Fast Node Manager) - A fast and simple Node.js version manager, built with Rust

Why Choose fnm?

fnm is a modern Node.js version manager with the following advantages:

• 🚀 Extreme Performance - Built with Rust, extremely fast startup and execution
• 🔄 Cross-Platform Support - Perfect support for macOS, Windows, Linux
• 📦 Single File Installation - No complex configuration, download and use
• 🎯 Automatic Version Switching - Automatically switch Node.js versions based on project
• 📁 Version File Support - Supports .node-version and .nvmrc files
• 🐚 Multi-Shell Support - Supports Bash, Zsh, Fish, PowerShell

Quick Start

Install fnm

macOS/Linux

curl -fsSL https://fnm.vercel.app/install | bash

Windows

winget install Schniz.fnm

Using Homebrew

brew install fnm

Configure Shell

Bash

eval "$(fnm env --use-on-cd)"

Zsh

eval "$(fnm env --use-on-cd)"

Fish

fnm env --use-on-c | source

PowerShell

fnm env --use-on-cd | Out-String | Invoke-Expression

Install Node.js

# Install latest LTS version
fnm install --lts

# Install specific version
fnm install 20

# Use specific version
fnm use 20

Main Features

🔄 Automatic Version Switching

fnm can automatically switch Node.js versions based on .node-version or .nvmrc files in the project directory:

# Create .node-version file in project root
echo "20" > .node-version

# Automatically switch version when entering directory
cd my-project
# Automatically uses Node.js 20.x

📦 Version Aliases

Set aliases for commonly used Node.js versions:

# Set alias
fnm alias 20 default

# Use alias
fnm use default

🔧 Corepack Support

fnm natively supports Corepack, which can automatically enable Yarn and pnpm:

fnm install 20 --corepack-enabled

Next Steps

• Installation Guide - Learn more about installation methods for each platform
• Command Reference - Learn all available commands
• Version Management - Learn how to manage Node.js versions
• fnm vs nvm - Compare fnm with nvm