Analyze licenses of all dependencies in a package.json. Lists each dependency's license, flags copyleft (GPL) and unknown licenses, and checks compatibility.

Check which dependencies are outdated. Compares current vs latest version, categorizes as major/minor/patch update, and shows days since last publish.

Show the dependency tree: direct deps and their transitive deps, total depth, circular dependency detection, and total transitive dependency count.

Estimate total node_modules size from package.json without installing. Uses the bundlephobia API to get minified and gzipped size for each production dependency.

Check dependencies for known security vulnerabilities. Uses npm audit when available, falls back to the npm registry advisory API. Shows severity, affected versions, and fix recommendations.