Minify CSS or JavaScript code for production to reduce file size, or beautify minified code for debugging online for free. Free CSS and JS minifier.
Paste your CSS or JavaScript at tools.arkaserve.com/css-js-minifier, select "Minify," and copy the compressed output. All whitespace, comments, and newlines are removed, reducing file size by 20–60%. The minified code is functionally identical to the original — it runs exactly the same in every browser. Completely free, no signup, no file size limit for typical use.
Paste the minified code and select "Beautify" — the tool adds proper indentation and line breaks to make the code human-readable. This is useful for understanding third-party scripts, debugging a minified error, or reviewing compressed code before using it. Note that variable names are not restored from uglified code — only whitespace and formatting are added back.
No. Minification only removes whitespace, comments, and unnecessary characters — it never changes the logic, selectors, values, or function names. The minified code runs identically to the original. However, always keep an unminified copy in your source control for future editing, and test the minified output in your browser before deploying to production.