A simple CSS property viewer.

What is CSSViewer?
CSSViewer is a Chrome extension originally developed as a Firefox add-on by Nicolas Huon. This simple CSS property viewer allows users to easily inspect any element of a webpage. To use CSSViewer, click the toolbar icon and then hover over any element you want to inspect in the current page. The extension is open source with its code available on GitHub. For its proper functioning, CSSViewer requires permission to access your history and website data, but ensures privacy by not collecting or transmitting any personal data.
By: M.ed
Users: 200,000+
Version: 1.7 (Last updated: 2017-03-26)
Creation date: 2017-03-26
Risk impact: High risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 2
  • tabs
  • http://*/*
  • https://*/*
  • file://*/*
  • contextMenus
Size: 308.22K
Stats date:

Other platforms

Not available on Firefox
Not available on Edge
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CSSViewer is a simple CSS properties viewer originally made by Nicolas Huon as a FireFox add-on (2006-2008).

How to use : To enable CSSViewer, simply click the toolbar icon and then hover any element on you want to inspect in current page.

Open source inside: Source code can be found on GitHub at https://github.com/miled/cssviewer

Privacy : In order to work properly, CSSViewer requires the permission to access to your history and website data. However, CSSViewer do not collect nor will ever transmit any of your private data.

Known issues :

  • CSSViewer will not work in any opened tabs before installing it nor in the Google chrome store (This is how Google roll :)
  • The style may broke sometimes depending on the site you are surfing.
  • Patches are welcome.
See more
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Useful for front end developers
  • Ability to copy structured CSS
  • Interactive and easy to use
  • Yellow font color on white background makes it hard to read
  • Popup box location can obstruct view
  • Not working when web elements are inside a frame
Most mentioned
  • Great tool
  • Very useful
  • Font color on white background
  • Ability to copy CSS
  • Not working with elements inside frames
Recent reviews
I use SuperDev Pro now.
by Six Silicon Six Silicon, 2024-07-13

It's an outdated and abandoned project. SuperDev Pro is a powerful alternative.
by Choudhary Abdullah Choudhary Abdullah, 2024-07-12

by Chris Natello Chris Natello, 2024-07-03
View all user reviews
Risk impact

CSSViewer is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this extension. Review carefully before installing. We recommend that you only install CSSViewer if you trust the publisher.

Risk likelihood

CSSViewer has earned a good reputation and can be trusted.

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Promo images
CSSViewer small promo image
Small promo image
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