Knip finds and fixes unused dependencies, exports and files in your JavaScript and TypeScript projects. Less code and dependencies lead to improved performance, less maintenance and easier refactorings.

• Website: knip.dev
• GitHub repo: webpro-nl/knip
• Official npm packages: knip, @knip/create-config, @knip/language-server, @knip/mcp
• Knip on the VS Code Marketplace, Knip on the Open VSX Registry
• Contributing Guide
• Follow @webpro.nl on Bluesky for updates
• Sponsor Knip!

This repository includes a ready-to-use agent skill in the skill/ directory. It gives AI coding agents structured guidance on running Knip — setup, configuration, interpreting results, handling false positives, and safe auto-fixing.

Install with a single command:

npx skills add https://github.com/webpro-nl/knip --skill using-knip

Or copy the skill/ folder manually into your agent's skill directory:

# GitHub Copilot
cp -r path/to/knip/skill .github/skills/using-knip

# Claude Code
cp -r path/to/knip/skill .claude/skills/using-knip

The skill triggers on phrases like "knip", "unused dependencies", "unused exports", "dead code", and similar. It includes configuration templates for common setups (Next.js, Expo, Astro, monorepos) in skill/references/.

Special thanks to the wonderful people who have contributed to Knip!

/'knɪp/ means "(to) cut" and is pronounced with a hard "K" 🇳🇱

Knip is free and open-source software licensed under the ISC License.

Parts of Knip have been inspired by and/or partially copy code from the following projects:

• @npmcli/package-json (ISC)
• @pnpm/deps.graph-sequencer (MIT)
• file-entry-cache (MIT)
• json-parse-even-better-errors (MIT)