Compress CSS, JS, HTML, and JSON files instantly. Reduce file size, improve load times, and boost your SEO scores.
Advertisement
Input Code
Length: 0CSS
Minified Output
Compression Stats
Paste code and click minify to see stats.
100% Client-Side Secure
Your code never leaves your browser. All processing is done locally via JavaScript for maximum privacy.
Advertisement
Why Use an Online Code Minifier?
In the world of web development, speed is everything. Every kilobyte counts when it comes to page load times, SEO rankings, and user experience. Code Minification is the process of removing unnecessary characters from source code without changing its functionality.
Our free Online Code Minifier tool streamlines this process. Whether you are working with CSS stylesheets, JavaScript logic, HTML structures, or JSON data, our tool effectively compresses your files by removing:
Whitespace and indentation
Newline characters
Code comments
Block delimiters
Faster Load Times
Smaller files download faster. Minification can reduce file size by 10% to 60%, drastically improving FCP (First Contentful Paint).
Better SEO Rankings
Google uses site speed as a ranking factor. Optimized assets help you score higher on Core Web Vitals metrics.
Lower Bandwidth
If you pay for hosting based on bandwidth usage, smaller files mean lower monthly bills for your infrastructure.
Frequently Asked Questions
Is it safe to use this minifier?
Yes, absolutely. Unlike many server-side tools, our minifier runs entirely in your web browser using JavaScript. Your code is never uploaded to our servers, ensuring your intellectual property remains private.
Can I reverse the minification?
While you can use 'Unminify' or 'Prettify' tools to restore formatting (indentation and newlines), any comments removed during the minification process are gone forever. Always keep a backup of your source code!
Does minification break my code?
Generally, no. Minification only removes non-essential characters. However, if your original JavaScript code is missing semicolons or has syntax errors, minification might expose these issues. We recommend testing the minified code in a staging environment.
What is the difference between Minification and Gzipping?
Minification removes characters from the code itself. Gzipping compresses the file on the server before sending it to the browser. For best results, you should use both.