Code Minifier (JS/CSS)
Minify your CSS or JavaScript code instantly to save bandwidth and improve load times.
What is this tool?
The Code Minifier compresses CSS and JavaScript code by stripping comments, collapsing whitespace, and eliminating redundant characters. It features a dual-mode toggle for CSS and JavaScript, real-time byte count metrics, and instant one-click copying to optimize web performance.
How to minify CSS and JavaScript code
- Choose your target language: CSS or JavaScript.
- Paste your source code into the input editor.
- Click Minify Code to compress the content.
- Review the saved byte metrics and copy the minified code.
Key Features
- Dual mode: Minify CSS stylesheets and JavaScript scripts
- Strips single-line and multi-line comments while preserving URLs
- Real-time statistics displaying original size, minified size, and space saved
- Runs entirely in the browser with zero network requests
Frequently Asked Questions
Why should I minify JavaScript and CSS before deploying?
Minified files have smaller payload sizes, reducing bandwidth consumption, accelerating download speeds, and improving Largest Contentful Paint (LCP) performance.
Does minifying JavaScript change how it executes?
No. The minifier removes whitespace and comments without modifying variable names, logic flow, or API calls.
Can I minify both CSS and JS in this tool?
Yes. Simply switch between the CSS and JS mode tabs to process different code types.
Is my source code sent to a remote API?
No. All minification logic runs completely inside your browser using client-side regular expressions.
Privacy First
Code minification runs 100% locally in your browser. Source code is never sent to external servers.