# Schniz/fnm

🚀 Fast and simple Node.js version manager, built in Rust

Repository: https://github.com/Schniz/fnm
Canonical: https://ross.abutalabs.com/products/fnm
Homepage: https://fnm.vercel.app
Language: Rust
License: GPL-3.0
License Family: copyleft
Topics: nvm, nodejs, javascript, reasonml, version, hacktoberfest
Last push: 2026-07-24T14:28:38+00:00

## Health v2 (maintenance only)
Score: 84/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 94, release rhythm 61, longevity 100
- inputs: {"age_days": 2786, "days_push": 40, "days_rel": 180, "gap_med": 39, "n_releases_24m": 4}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 26703, forks 641 (observed 2026-08-28T04:11:47.107638+00:00)

## What it is
fnm (Fast Node Manager) is a fast, cross-platform Node.js version manager written in Rust. It installs and switches Node.js versions per-project, supporting .node-version and .nvmrc files with instant shell startup.

## Use cases
- manage multiple node.js versions
- switch node version per project
- fast alternative to nvm
- read .nvmrc automatically
- install node.js on windows
- set up node version in ci

## When to choose
- you need fast Node.js version switching across macOS, Linux, and Windows
- you want a single static binary with instant shell startup
- your projects use .nvmrc or .node-version files

## When to avoid
- you need to manage versions of languages other than Node.js
- you rely on nvm-specific shell functions or plugins
- you need a version manager with a GUI

## Facets
- artifact type: cli-tool
- maturity: active
- function: developer-tools, cli, version-control
- domain: developer-tools, web-development
- platform: windows, cli, rust, cross-platform
- tags: nodejs, version-manager, nvm, rust, shell-integration, command-line, linux, macos

## Member repositories
- Schniz/fnm (main) score 84

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:47.107638+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:55:50.145646+00:00, confidence not recorded.
  - readme: https://github.com/Schniz/fnm (fetched 2026-08-28T04:11:47.107638+00:00, sha 3fbf3bd44977)
  - homepage: https://fnm.vercel.app (fetched 2026-08-29T07:52:03.676392+00:00, sha df6d1e56ff51)
  - registry_crates: https://crates.io/api/v1/crates/fnm (fetched 2026-08-29T07:52:03.685792+00:00, sha a4f1a3e521aa)
- Data as of 2026-08-30T08:39:29.467469+00:00.