The CSS Minifier & Beautifier by KineTools helps front-end developers clean, optimize, and reformat CSS effortlessly. Whether you're working with messy unformatted code or compressed stylesheets, this tool intelligently detects your code type and transforms it instantly.
Automatically detects if CSS is minified or beautified and applies the opposite transformation intelligently.
Converts rgb() to hex, shortens hex codes (#ffffff → #fff), and optimizes color values for smaller file size.
Identifies and removes duplicate CSS rules, properties, and values to clean up your code automatically.
Real-time analysis showing file size reduction, number of rules, properties, colors, and optimization metrics.
Intelligently merges identical selectors with same properties to reduce code redundancy and improve performance.
Organizes CSS properties alphabetically for better readability and easier maintenance of stylesheets.
Removes unnecessary zeros, units, and whitespace while preserving CSS functionality and browser compatibility.
Instantly swap input and output to re-process CSS, perfect for testing different optimization settings.
Paste your CSS code into the input textarea. You can paste minified or beautified CSS - the auto-detect mode will handle it smartly.
Select Minify, Beautify, or Auto-Detect mode. Enable options like color optimization, duplicate removal, and property sorting as needed.
Click "Process CSS" to transform your code. View live statistics showing size reduction, rules count, and optimization metrics.
Use the copy button to copy optimized CSS to clipboard, or download as a .css file. Swap input/output to re-process with different settings.