CSS / HTML / JS Minifier
Shrink CSS, HTML and JavaScript, or beautify CSS back into readable form.
Runs entirely in your browser — nothing is uploaded.
About the CSS / HTML / JS Minifier
The Freemium.Tools code minifier strips comments and unnecessary whitespace from CSS, HTML and JavaScript so files download faster, and can beautify CSS back into readable form — all inside your browser.
Every kilobyte of CSS and JavaScript delays the moment a page becomes usable, and Core Web Vitals punish that delay. Minifying removes the parts only humans need: comments, indentation and line breaks.
Paste your code, pick the language, and get a smaller file plus an honest before-and-after size. The minifier is deliberately conservative — it never renames variables or reorders statements, so the output behaves exactly like the input.
How to use it
- 1Pick the language. Choose CSS, HTML or JavaScript so the right rules are applied.
- 2Paste your code. Drop in a stylesheet, a template or a script. Nothing is uploaded.
- 3Copy or download. Take the minified output and see how many bytes you saved.
Frequently asked questions
Is minified code still safe to run?
Yes. This tool only removes comments and redundant whitespace; it never renames variables, drops code or changes the order of statements, so behaviour is identical.
How much smaller will my file get?
Typical CSS shrinks 20-35% and commented JavaScript often 15-30%. The exact saving is shown above the result after each run.
Does minifying help SEO?
Indirectly but meaningfully. Smaller CSS and JavaScript improve Largest Contentful Paint and Interaction to Next Paint, which are Google ranking signals.
Can I get my formatting back?
For CSS, yes — switch the action to Beautify and the tool re-indents it. Minification is lossy for comments, so keep your source file.
Is my code uploaded anywhere?
No. The minifier runs in your browser tab, so proprietary code never leaves your machine.