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screenshotPage Ruler  |  Download Measure page elements size in pixel with an easy-to-use ruler.

Some of the important features of the Page Ruler addon are listed below. This is followed by an overview of this addon. This summary contains few words about the addon, its function, and its features. Next is FAQ, this section is useful to get information about how this addon works in your browser. If you couldn’t find a specific answer, please fill the bug report form on this page or the contact form on the homepage to let us know about your question. Following the FAQ, is the bug report form. It is designed to collect user feedbacks and bugs about this addon. Users can suggest improvements or feature requests through this form too. The next section is for submitting comments about this addon which uses the Facebook comments plugin. The last section is dedicated to reports submitted through the GitHub website. We hope the information provided on this page, could help you get all the basics you need about this addon and enable you to have a better experience with Page Ruler.

In short, Page Ruler is a lite tool that lets you measure page elements via a rectangular ruler in pixels (supports both mobile and desktop machines). Please check the YouTube tutorial below to get an idea of how this addon works in your browser. If you want to contribute to the developement of this addon, please fork it on GitHub, and push your changes to a named branch. Moreover, you can review all the comments made on GitHub commits.

4 Reasons to Use Page Ruler

  • Very lite addon with no background activities.

  • Has ON|OFF switch to quickly turn the addon ON or OFF.

  • Works with touch-enabled devises and desktop machines with a mouse.

  • Available for Chrome, Firefox, Edge, and Opera browsers on all operating systems.

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Frequently Asked Questions

  • 1. What is Page Ruler?

    Page Ruler is a lite and multi-browser add-on that lets you measure distances in a webpage. It draws a rectangular ruler when you move your mouse on the page. The ruler has width, height, start and end all labeled with corresponding metrics in pixels. When you move your mouse the rectangle changes its size and all the numerics are updated. To activate the addon please press the toolbar button once. Likewise, to disable the addon please press the toolbar button again. This addon works with mouse clicks in desktop machines, for touch-enabled devices, you can work with touch to drag the rectangle within the page.

  • 2. How can I work with Page Ruler addon?

    To work with Page Ruler add-on, simply browse to a website that you want to measure. Then, please click on the toolbar button once to activate the addon. Once the addon is activated, you can see a uniform grid (50x50 pixels) on the page and also a small info bar at the top-left corner of the screen showing the - Ruler Mode - label. Pressing on the toolbar button will disable the addon and removes the grid. As mentioned above, when the addon is active please move your mouse within the page to draw the ruler rectangle. You can then read the start, end, width, or height of the rectangle in pixels. The endpoint can also be further adjusted with the keyboard up, down, left and right keys.

  • 3. How can I download the source code for Page Ruler?

    To download the source code for this extension from Chrome Web Store, it is recommended to use Extension Source Downloader. With this addon, you can download the source code as a ZIP or CRX format to your machine. If you want to download the source code from the Firefox addons store, please open the firefox download link (if available) in the Firefox browser and then right-click on the - Add to Firefox - button and select - Save Link As... - item. Choose the destination folder on your machine and then save the file in XPI format. You can then rename the XPI format to a RAR or ZIP file. Some extensions may have a GitHub repo address, which you can use to download the source code as well. But, it may not be the latest version of the addon. Therefore, downloading the source code from the official web stores is the best option as it always gives you the latest version of the addon.

  • 4. How does the page Ruler addon work?

    This addon works based on pure JavaScript codes, no third-party libraries are used. All modern browsers currently support this API. Moreover, it works for both mobile and desktop machines on all operating systems.

  • 5. Can I move the ruler rectangle within the page?

    No, unfortunately, currently there is no option to move the rectangle once it is drawn. You can only adjust the size with keyboard or mouse.

  • 6. Is there any options or setting page available for this addon?

    No, this addon has no settings or options to adjust.

  • 7. Can I open page ruler in a blank tab?

    No, the ruler is only working on a website with content. It is not working for a blank or empty tab.

  • 8. How can I revert the page to the original state?

    If you want to disable the addon, please reload the page once. Please note that all the changes made by this addon will be erased as soon as you reload the page (active tab). You can also click on the toolbar button once to remove the grid and label. AAA

  • 9. Where can I find the privacy policy for Page Ruler?

    Please read the privacy policy for this extension here.

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Submitting Bugs

Your feedback goes a long way towards making this addon even better. With this bug report form, you can submit bugs or suggest enhancements for the functionality or performance of this addon. Please note, this bug report form will be sent to the developer(s) of this addon. You will not get an immediate or personal response at the moment. However, the developer(s) may contact you through the email address provided in this form for further clarifications or requesting additional information regarding the reported bug(s).

Please enter the name of the extension (addon).

Please enter the current version of the extension.

Please be as specific as possible. Basically, describe what happened, what you were doing when it happened, and why you think it is a problem.

Describe the step-by-step process required to reproduce the issue you are reporting. Be specific when describing these steps by providing as much detail as possible.

Please try to leave a link to a screenshot for the specific bug or error report.

Please enter your operating system.

Please enter your browser and its current vesrion.

Please enter your email address.

Reviews | Discussions

Please note: keep these reviews/discussions clean, and avoid the usage of derogatory or inappropriate language or terminology in references to individuals or groups based on race, national or ethnic origin, color, religion, age, gender, etc. Do not submit bugs in your reviews, use the above bug-report section instead. Also, never post any personal information in these reviews.

GitHub Issues | Fork me on GitHub