Knip

Overview

Knip finds unused files, dependencies, and exports in your TypeScript/JavaScript project. It understands your project structure — framework entry points, config files, scripts — and reports what's truly unused. Unlike ESLint's no-unused-vars (which only checks within files), Knip works across the entire project: unused exports, orphan files, unlisted dependencies, and packages in package.json that no code actually imports.

When to Use

• Cleaning up a codebase that's accumulated dead code over time
• Auditing npm dependencies (unused, unlisted, or duplicate)
• Reducing bundle size by removing unused exports
• Pre-refactoring analysis to identify what can be safely deleted
• CI gate to prevent new unused code from being merged

Instructions

Setup