Free CSS Tools Online - Formatter, Minifier, Unit Converter
Css Analyzer
Analyze CSS for size, rules count, selectors, and properties. Find optimization opportunities. Browser-based, private CSS analysis.
Css Comment Stripper
Remove all comments from CSS files while preserving code. Clean up stylesheets for production. Browser-based, instant processing.
Css Formatter
Format and beautify minified CSS with proper indentation. Make compressed stylesheets readable again. Fast, private, works in your browser.
Css Minifier
Minify CSS by removing whitespace, comments, and optimizing code. Reduce file size for faster page loads. Fast, private, works in your browser.
Css Sorter
Sort CSS properties alphabetically within rules. Consistent ordering for readable stylesheets. Browser-based, instant formatting.
Css Unit Converter
Convert between CSS units: px, em, rem, vw, vh, pt, cm, mm. Set base font size for accurate conversion. Client-side processing.
Css Variables Extractor
Extract CSS custom properties (variables) from stylesheets. List all --var definitions with values. Browser-based, private analysis.
Px To Rem
Convert pixels to rem units for responsive CSS. Set your base font size, convert single values or entire stylesheets. Files stay local.
Svg Minifier
Compress SVG by removing comments, whitespace, and metadata. Reduce file size while preserving visual quality. Fast and private.
SVG Optimizer
Optimize SVG files by removing metadata, editor data, and unnecessary elements. Clean SVGs for web use. Browser-based tool.
Svg Prettifier
Pretty-print SVG with proper indentation. Make minified SVG readable for editing. Browser-based, instant formatting.
CSS Tools for Web Development
CSS is the styling language of the web. Our browser-based tools cover the full lifecycle of CSS development: formatting for readability during development, unit conversion for responsive design, and minification for production deployment.
CSS Formatting and Beautification
Production CSS is often minified — all whitespace removed to reduce file size. This makes debugging difficult since everything appears on one line. Our formatter restores structure, making styles readable and editable. One property per line, consistent indentation, and proper selector grouping.
CSS Minification
CSS files accumulate comments, formatting, and whitespace during development. Minification strips everything unnecessary while preserving functionality. Typical savings: 15-30%. Converts #ffffff to #fff, removes unnecessary units (0px → 0), and combines related properties.
PX to REM Conversion
REM units (root em) are relative to the root element's font size, making layouts scale with user font preferences. Converting px values to rem is essential for accessible, responsive designs. Our converter handles bulk conversion of CSS files and provides reference tables for common values.
Accessibility Considerations
Using rem instead of px for font sizes allows users who need larger text to scale content with their browser settings. WCAG guidelines recommend layouts that work at 200% zoom — rem-based designs achieve this naturally.