See inside any package.
Dependencies, vulnerabilities, license & health — all in one view.

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Why pkglens?

Deep vulnerability scanning

Scan direct dependencies for known CVEs using the OSV database. See which dependencies put your project at risk.

Bundle analysis

Understand what you're paying for. See tree-shaking support, module composition, and loading impact on slow connections.

Maintenance health

Check release cadence, maintainer count, and community activity. Know if a package is actively maintained before you depend on it.

Curated alternatives

Compare with hand-picked alternatives. See how your chosen package stacks up in downloads, bundle size, and security.

Supports npm, Composer and PyPI packages.