JavaScript Minifier
Compress JavaScript code by removing comments, whitespace, and unnecessary characters. Reduce bundle size for faster websites.
Optimize JavaScript for Production
JavaScript minification is essential for web performance. Our minifier removes comments, whitespace, and optimizes your code to reduce file sizes, leading to faster page loads and better user experience.
What Gets Minified
- Comments: Single-line (//) and multi-line (/* */) comments removed
- Whitespace: Unnecessary spaces, tabs, and newlines stripped
- Semicolons: Redundant semicolons eliminated
- Variable names: Consider using Terser for full mangling
Performance Impact
- Faster downloads: Smaller files = quicker transfers
- Reduced parse time: Less code for browsers to process
- Better caching: Smaller bundles cache more efficiently
- Lower bandwidth costs: Save on hosting and CDN expenses
Best Practices
Always minify JavaScript for production environments. Keep source maps for debugging minified code. Use code splitting to load only necessary scripts. Consider tree shaking to eliminate dead code. Combine minification with Gzip/Brotli compression for maximum savings.
Note on Complex Minification
For production use, consider tools like Terser, UglifyJS, or esbuild which provide additional optimizations like variable mangling, dead code elimination, and scope hoisting. This basic minifier is great for quick compression needs.