Advanced Code Minifier
Powerful online code minifier. Optimize JS, HTML, CSS, and XML instantly to increase your website performance.
Source javascript
Minified Result
Built With Care
“Minification is a critical step in production deployments. Removing whitespace, comments, and redundant syntax can reduce file sizes by 30-70%, directly improving First Contentful Paint (FCP) and Largest Contentful Paint (LCP) scores. For advanced optimization, pair minification with gzip or Brotli compression on your server.”
Code Minifier
Paste JS, HTML, CSS, or XML and get a minified version with whitespace and comments removed. Useful for quick pre-deploy checks when a build pipeline isn't available.
- 1Select the language mode (JavaScript, HTML, CSS, or XML) above the editor.
- 2Paste your raw development code into the left source panel.
- 3Click the 'Minify Code' button to compress the content immediately.
- 4Review the reduction statistics in the bottom panel to see how many bytes were saved.
- 5Copy the minified output and use it in your production deployment.
- Multi-Language: One tool to rule all your frontend assets—JS, HTML, CSS, and XML.
- Live Statistics: Track real-time byte count and percentage reduction for every minify.
- Smart Compression: Strips dead code and whitespace while strictly adhering to syntax rules.
- Native Execution: High-speed processing directly in your browser with zero latency.
- Pro Utility: Load samples to see how common structures are optimized for web.
Real Ways People Use This
Production Deployment
Compress JS, CSS, and HTML assets before deploying to reduce bandwidth usage and improve page load times.
Email Template Optimization
Minify inline CSS and HTML in email templates to stay under size limits and improve rendering across email clients.
Asset Size Comparison
Quickly compare original vs. minified sizes to decide which assets benefit most from compression.
Learning Tool
See how minifiers transform code to understand what characters are safe to remove in each language.
- Minification removes comments and whitespace — keep your original source files for development and debugging.
- This is basic minification. For production, consider using Terser, cssnano, or html-minifier for more aggressive optimizations.
- 1Select the correct language mode before pasting your code.
- 2Verify the minified output still works by testing it in your application.
- 3Keep a copy of the original unminified source for future edits.