NPM Workspaces in NPM
From the NPM Package Manager cheat sheet · Workspaces & Advanced · verified Jul 2026
NPM Workspaces
Manage multiple packages in monorepo
bash
// Root package.json
{
"name": "my-monorepo",
"workspaces": [
"packages/*",
"apps/*"
]
}
# Install in workspace
npm install express -w packages/api
npm install -D jest --workspaces
# Run scripts in workspace
npm run build -w packages/core
npm run test --workspaces
# Execute in all workspaces
npm run build --workspaces --if-present
# Create new workspace
npm init -w packages/new-package🔴 Advanced - Great for monorepos
💡 Workspaces share dependencies (hoisting)
📌 Reference internal deps by name + semver (npm has no workspace: protocol)
⚡ Reduces duplication and install time
🔗 Related: lerna, nx for advanced monorepos
workspacesmonorepo
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