CSS Minifier & Beautifier
Compress, minify, prettify, and format CSS code online with autoprefixer and syntax validation.
Related Tools You Might Find Helpful
JSON Formatter
Format, minify, validate, and clean JSON data strings with clear, real-time syntax checking and errors.
JSON Beautifier
Beautify, format, sort keys, and prettify nested JSON data with custom indentation and color syntax highlighting.
CSV to JSON Converter
Convert CSV spreadsheets and tabular data into formatted JSON arrays or objects with custom delimiter detection.
JSON Parser (String to JSON)
Parse, validate, and unescape stringified JSON strings into structured, inspectable JSON data with syntax checking.
Free Online CSS Minifier & Beautifier Tool
Optimizing your CSS files is critical for improving Google Core Web Vitals, reducing First Contentful Paint (FCP), and cutting server bandwidth consumption. Nextgen Astra's CSS Minifier & Beautifier instantly strips unneeded comments, whitespace, and line breaks to compress CSS bundle sizes by up to 80%.
⚡ CSS Minification Features
- Strips single-line and multi-line comments.
- Eliminates extraneous whitespace, newlines, and trailing semicolons.
- Calculates real-time file size savings in bytes and percentage.
🎨 CSS Prettifier Features
- Formats messy or minified CSS with clean 2-space indentation.
- Restores structured CSS blocks, selectors, and property rules.
- 100% private — code never leaves your browser sandbox.