4.6 out of 5
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Eric Mao Mar 3, 2026
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automatically calculates measurement between two lines, which is great. But has some trouble on some websites, such as iCloud mail. Becomes super laggy and unresponsive.
irina p Aug 31, 2022
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broken? i click on it and nothing happens.
Perhaps you're trying to use it on a file:: URL? In Manage Extensions you can select 'Allow access to file URLs' for this plugin to allow that.
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Kenneth Thomas Jul 18, 2022
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Absolutely awesome! Above the cut, the ability to drop guideline + CSS integration set this extension apart.
Александр Ратманский Aug 31, 2021
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One of the best extensions on the marker. Thank you for not giving it up and continuing to develop it.
Todd Chambery Jul 27, 2021
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Simple to use, indispensable.
Magno Alberto Jun 9, 2021
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The best ruler extension ever on the Chrome Web Store. Easy to use and super complete, it provides all the necessary information from a ruler! Even more complete than the Photoshop ruler itself.
An Vei Oct 23, 2020
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Good!
Dale Sheeley Sep 27, 2019
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DOES NOT WORK
Tiby Aug 19, 2019
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Love it. If there could be an option for quickly adding the last type of rule via left click, that would be amazing (horizontal, vertical or both). I would also suggest left click to default to "set origin" when no rule has been placed yet. What would make this absolutely insane would be snapping to bitmap pixels as well (maybe in a separate mode). It would have to detect edges via colors wich can be quite complicated. A would be very very nice to have I'd say.
Nikola Jovanovic Mar 20, 2019
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I get the impression that it is not working properly when you use dev tools, turn on devices view, and set the zoom to, for example, 50%.

