Skip to content
Chrome extension that allows to easily compare CSS of two HTML elements.
JavaScript CSS HTML
Failed to load latest commit information.

CSS Diff

Chrome/Chromium extension that allows to easily compare CSS of two HTML elements.



You may install this extension from its Chrome Web Store page or download it from GitHub and manually load as an 'Unpacked extension' via chrome extensions page (chrome://extensions).

To compare elements, activate Chrome Developer Tools (F12) and open "CSS Diff" tab located in the right panel of the "Elements" module (please refer to the screenshot). Next, inspect (e.g. using magnifying glass button) first of the elements that you wish to compare. As soon as it will be selected, CSS Diff will display it in the "last inspected" section. Hit "Compare" button and repeat the whole process for the another element. As soon as two HTML elements will be selected, CSS Diff will show all CSS differences between them.

Bugs and Features

If you found a bug or have a feature request, please create an issue here on GitHub.



New features:

  • ability to compare elements from different tabs
  • more control over what is being compared through the 'Compare' button
  • improved look


New features:

  • differences displayed in a table
  • similar attributes grouped
  • webkit attributes separated

Thanks to

Mike Vanderkley for inspiration


Konrad Dzwinel


This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see

Something went wrong with that request. Please try again.