CSS Declaration Explorer
Search CSS property names and values, find important declarations, and export their locations for stylesheet cleanup.
How can I find a CSS property across many rules?
Paste CSS and enter part of a property name or value. Select Analyze CSS to list matching declarations with their selectors, enclosing rules, and source lines. Download all matches as CSV or the full unfiltered JSON report.
Your result
A little clarity, right here.
Start with your own content or load the example. Your result will appear here.
Three simple steps
How to use CSS Declaration Explorer
Paste your source or open a text file. Try the example if you are learning.
Choose the options and run the tool. Your source stays on this device.
Review the result, then copy it or download the files.
Common questions
Good to know
Understand the result.
Keep the original.
Is this tool free, and are my files uploaded?
This tool is free with no account required. The work happens in your browser. Your input and files are not sent to a processing server.
What are the limits and details?
Up to 100,000 UTF-8 bytes, 5,000 CSS statements and 40 nesting levels. Processing stops after 30 seconds. Files stay on your device. CSS is never applied to this page and JavaScript is never executed. Searches are case-insensitive. Duplicate declarations are kept in their original order because they can be intentional fallbacks. CSV cells are protected against spreadsheet formulas.
100 KB of source. Local processing. Cancel at any time.