CSS, JS & HTML Minifier
Paste CSS, JS, or HTML and get a smaller, minified version. Free to use, no signup required for occasional use.
Minified code will appear here…What is the CSS/JS/HTML Minifier?
The CSS/JS/HTML Minifier strips comments, unnecessary whitespace, and redundant line breaks from your code to produce a smaller output, with an estimated percentage size reduction shown alongside the result. Smaller CSS, JS, and HTML files transfer faster and parse marginally quicker in the browser, which matters for performance-sensitive pages. This lightweight, in-browser minifier is handy for quick one-off minification — for example shrinking a small inline script or a stylesheet snippet — without wiring up a full build pipeline.
How to use it
Pick CSS, JS, or HTML from the tabs, paste your code, and the minified output appears immediately along with the percentage size saved. Copy the result and use it wherever the smaller version is needed, such as an inline <style> or <script> block.
Frequently asked questions
Is this a full replacement for a production build tool?
For everyday minifiers used in bundlers like esbuild or Terser, no — this is a lightweight, in-browser tool best suited for quick snippets rather than an entire production bundle.
Will minifying change how my code behaves?
The minifier only removes comments and unnecessary whitespace; it doesn't rename variables or restructure logic, so behavior should remain the same for typical code.
Can I minify all three languages from the same page?
Yes, switch between the CSS, JS, and HTML tabs to minify each type.