Free Online Code Minifier
Minify JavaScript, CSS, and HTML to reduce file size. Remove whitespace, comment...Minify JavaScript, CSS, and HTML to reduce file size. Remove whitespace, comments, and unnecessary formatting for production-ready code.
Minified code will appear here...
Minifier Features
Why Use Free Online Code Minifier?
Faster Page Loads
Smaller code files mean faster downloads and improved Core Web Vitals scores for your websites.
Multi-Language
Minify JavaScript, CSS, and HTML all in one tool. Switch languages easily with the dropdown.
100% Client-Side
Your code never leaves your browser. Complete privacy and security guaranteed.
Free Forever
No hidden fees, no subscriptions. Minify unlimited code completely free.
Size Reduction Stats
See exactly how much smaller your minified code is with percentage reduction displayed.
Sample Code
Load sample code for each language to test the minifier before using your own code.
Common Uses for Code Minifier
Production Deployment
Minify JavaScript, CSS, and HTML before deploying to production for faster page loads.
Performance Optimization
Reduce file sizes to improve Core Web Vitals and page speed scores.
Bandwidth Reduction
Smaller files mean less bandwidth usage, saving costs on hosting and CDN.
Code Obfuscation
Minified code is harder to read, adding a basic layer of obscurity to your source.
How It Works
Select Your Language
Choose JavaScript, CSS, or HTML from the dropdown menu based on the type of code you want to minify.
Paste Your Code
Copy your code from your editor or project and paste it into the input box.
Minify and Copy
Click Minify to compress your code. See the size reduction percentage and one-click copy to clipboard.
Tips & Best Practices
Use Build Tools in Production
For production workflows, integrate minification into your build pipeline (Webpack, Vite, etc.) for automated processing.
Keep Source Files Formatted
Always keep your formatted source files in version control and only minify for deployment.
Test After Minification
Always test minified code in a staging environment before deploying to production to catch any issues.