JavaScript Minifier

Code Tools

Compress your JavaScript files by removing comments and whitespace. Reduce file sizes for faster page loads and better performance.

Options

Input JavaScript

Minified JavaScript

Minified JavaScript will appear here...

Note: This is a basic minifier for simple optimizations. For production use, consider tools like Terser or UglifyJS which provide advanced optimizations like variable name mangling and dead code elimination.

Fast Processing

Minify JavaScript instantly in your browser. No server processing or file uploads required.

Safe Compression

Preserves strings and regex patterns while removing whitespace and comments safely.

Size Statistics

View original and minified file sizes with percentage savings displayed clearly.

What Gets Optimized

  • • Single-line comments: // comments are removed
  • • Multi-line comments: /* */ block comments are removed
  • • Whitespace: Extra spaces, newlines, and tabs are eliminated
  • • Trailing semicolons: Unnecessary semicolons before } are removed

For Production Use

This tool provides basic minification suitable for quick tasks. For production builds, consider using build tools like Terser, esbuild, or webpack which offer advanced optimizations like variable name mangling, dead code elimination, and tree shaking.

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