npm-prune

removes packages not in dependencies

TLDR

Remove extraneous packages

$ npm prune

Remove devDependencies

$ npm prune --omit=dev

Dry run to see what would be removed

$ npm prune --dry-run

Output results as JSON

$ npm prune --json

Prune a specific package

$ npm prune [package_name]

SYNOPSIS

npm prune [[@scope/]pkg...] [options]

npm prune removes extraneous packages not listed in the project's dependency tree. Extraneous packages are those installed but not referenced in package.json or any dependency's package.json.If --omit=dev is specified or the NODE_ENV environment variable is set to production, devDependencies are also removed. This is useful for preparing production deployments.When a package name is provided, only that package is pruned if it is extraneous.

PARAMETERS

--omit type

Dependency types to omit: dev, optional, or peer. Can be set multiple times.

--dry-run

Show what would be removed without making changes.

--json

Output results in JSON format.

--production

Deprecated alias for --omit=dev.

CAVEATS

Use --dry-run first to verify what will be removed. The --production flag is deprecated in favor of --omit=dev.