Code Minifier

What Is Code Minifier?

Code Minifier is a browser-based tool that compresses JavaScript, CSS, and HTML code to reduce file size. It removes unnecessary characters like comments, whitespace, and optional syntax elements while preserving the code's functionality.

Why Minify Code?

Minification reduces file sizes, which leads to faster page load times and lower bandwidth usage. Smaller files mean quicker downloads for your users and improved web performance scores.

Your Code Stays Private

All minification happens in your browser:

• No uploads — your code never leaves your device
• No tracking — we don't collect or store any code you paste
• Complete privacy — all processing happens locally in your browser

How to Use Code Minifier

Quick Actions

Keyboard Shortcuts

• Ctrl + Enter — minify immediately (bypasses debounce delay)
• Tab — insert 4 spaces for indentation in the input area

Features

JavaScript Minification

Powered by Terser — an industry-standard JavaScript compressor that supports modern ES6+ syntax and provides advanced optimization capabilities.

CSS Minification

• Remove CSS comments (/* ... */)
• Collapse whitespace and remove unnecessary spaces around selectors and properties
• Shorten hex colors (#ffffff → #fff)
• Optimize zero values (0px → 0)
• Remove trailing semicolons before closing braces
• Preserve calc() expressions with required spaces

/* Main styles */
.button {
    background-color: #ffffff;
    padding: 0px 10px;
    margin: 0px;
}

.button{background-color:#fff;padding:0 10px;margin:0}

HTML Minification

• Remove HTML comments while preserving conditional comments
• Collapse whitespace between and around tags
• Remove optional closing tags (</li>, </p>, </td>, etc.)
• Remove unnecessary attribute quotes for simple values
• Strip default type attributes (type="text/javascript", type="text/css")
• Preserve content in <pre>, <script>, <style>, and <textarea> tags

General Features

Frequently Asked Questions

function calculateTotal(price, quantity) {
    return price * quantity;
}

function calculateTotal(a,b){return a*b}