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 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