Get started in 30 seconds.
Pick your package manager and you're off. RuntimeJS works on Node.js 18+, Bun, and edge runtimes.
bash
npm install runtimejsGitHub releases
Browse signed release artifacts, source tarballs, and changelogs.
github.com/runtimejs/runtimejs →
npm package
Provenance-signed weekly. 12,458 installs this week.
npmjs.com/package/runtimejs →
Verify your install
Run the doctor command to verify your environment.
bash
npx runtimejs doctor
# ✓ Node.js 22.4.0 (supported)
# ✓ ESM enabled
# ✓ Worker threads available (16 cores)
# ✓ All modules importable