Free Online HTML, CSS, and JavaScript Minifier
Minify your HTML, CSS, or JavaScript to reduce file size and improve page load speed. HubKit's minifier strips whitespace, comments, and unnecessary characters while preserving functionality. Use it to optimize front-end assets before deployment or to prepare compact code for production.
How to Use
Paste your code into the input pane and select the language type. The minifier instantly removes all unnecessary whitespace and comments. Copy the minified output or download it as a file.
Features
- Remove whitespace and line breaks from HTML
- Strip comments and compress CSS selectors
- Minify JavaScript while preserving functionality
- See the compression ratio and bytes saved
Frequently Asked Questions
Will minifying my code break it?
No. The minifier only removes unnecessary whitespace, comments, and formatting. The functionality of your code remains unchanged.
How much file size reduction can I expect?
Typical minification reduces file size by 20–60%, depending on how much whitespace and comments the original code contains.
Should I minify code for production?
Yes. Minified code loads faster, uses less bandwidth, and improves page performance scores. It is a standard best practice for production websites.