A CSS property sorter is an online tool that helps you reorder CSS declaration properties inside a rule set. You can sort them alphabetically (A to Z) or by the recommended box model order, making your stylesheets more consistent and easier to read.

Consistent ordering improves code readability, makes debugging faster, and reduces merge conflicts in version control. Many teams follow a specific property order (like box model or alphabetical) as part of their CSS style guide. This tool automates the sorting process.

The box model order groups CSS properties logically: positioning properties (position, top, right, bottom, left, z-index) come first, followed by box model (display, width, height, margin, padding, border), then typography (font, text, line-height), visual styles (background, color, opacity), and finally miscellaneous (cursor, transition, transform). This grouping reflects how the browser renders elements.

Yes, simply check the "Reverse" option before sorting. This will output properties in Z→A order for alphabetical or the reversed box model sequence.

By default, the "Remove duplicates" option is enabled. It filters out repeated property names (case‑insensitive) so each property appears only once. You can disable this if you need to keep all occurrences.

Absolutely. All processing happens directly in your browser using JavaScript. No data is uploaded to any server or stored externally. Your CSS stays private.

The tool extracts valid CSS property names from your input. For box model sorting, we maintain a comprehensive list of common CSS properties in the recommended order. Unknown properties are sorted alphabetically and appended at the end.