Unused — Unused Code Detector for TypeScript & JavaScript
Find and remove unused code in your TypeScript/JavaScript projects directly inside VS Code.
Features
Unused Files
Detects .ts, .tsx, .js, .jsx, .mts, .mjs, .cjs files that are never imported anywhere in your project.
Unused Exports
Identifies exported functions, classes, constants, interfaces, types, and enums that nothing in your codebase imports.
Finds blocks of commented-out code that should either be deleted or restored.
Usage
- Open the Unused panel from the Activity Bar (left sidebar).
- Click the ↻ Refresh button to run the analysis on your workspace.
- Click any result in the tree to jump directly to the file at the relevant line.
Analyze a specific folder: right-click any folder in the Explorer → Unused: Analyze Folder.
Configuration
All settings are under unused.* in VS Code Settings (Ctrl+, / Cmd+,).
| Setting |
Default |
Description |
unused.includePatterns |
["**/*.{ts,tsx,js,jsx,mts,mjs,cjs}"] |
Glob patterns for files to analyse |
unused.ignorePatterns |
["**/node_modules/**", "**/dist/**", "**/out/**", "**/build/**"] |
Glob patterns to exclude |
unused.rules.unusedFiles |
true |
Detect files with no importers |
unused.rules.unusedExports |
true |
Detect exported symbols with no consumers |
unused.rules.commentedCode |
true |
Detect commented-out code blocks |
Supported Patterns
Import styles recognised:
- ES Module static:
import x from '…', import { a, b } from '…', import * as ns from '…'
- ES Module dynamic:
import('…')
- CommonJS:
require('…')
- Re-exports:
export * from '…', export * as ns from '…', export { a } from '…'
Entry points — never flagged as unused:
- Framework conventions:
page.tsx, layout.tsx, error.tsx, loading.tsx, not-found.tsx, route.ts (Next.js / Remix)
- App roots:
index.ts, main.ts, app.tsx, extension.ts (and .js/.jsx variants)
- Tests and stories:
*.test.*, *.spec.*, *.stories.*
Path aliases resolved:
@/ and ~/ are auto-resolved to src/ then project root- Custom aliases in
tsconfig.json → compilerOptions.paths are read and resolved automatically
Requirements
- VS Code 1.80 or later
- A TypeScript or JavaScript project (ES Modules or CommonJS)
Known Limitations
- Analysis is scoped to the open workspace — files in
node_modules are not followed.
- Decorator-based usage (Angular
@Component, NestJS @Injectable) is not yet detected.
- Cross-package analysis in monorepos is not yet supported.
- Dynamic
require(variable) (non-string arguments) cannot be resolved.
License
MIT
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