Jump to main content Jump to doc navigation

What is SizeMatters?

SizeMatters logs and displays the viewport widths of your visitors. It displays graphs showing the distribution of widths for your site's visitors in Ems and pixels, and the font sizes used. It also displays a configurable pie chart showing the percentage of visitors in each category (e.g., phones, tablets, notebooks, desktops).

Package Information

  • Downloads: 279
  • License: GPLv2
  • Requires: Revolution 2.0.x or greater
  • Supports: mysql,sqlsrv


This version of the SizeMatters extra was developed by Bob Ray. It was first posted to GitHub on Jul 20, 2016. As of Jun 22, 2017 it had been last updated on Jul 20, 2016, had 76 commits, and had been downloaded 279 times. The SizeMatters package consists of 1,273 separate files, containing 56,077 lines of code.

It is currently maintained by Bob Ray.


SizeMatters can be downloaded and installed from within the MODX Revolution Manager via Package Manager (Extras -> Installer), or from the MODX Extras Repository.

Development and Bug Reporting

SizeMatters is stored and developed using GitHub, and can be found here: SizeMatters GitHub main page.

Bugs and feature requests can be filed here: SizeMatters issues page..

Questions about how to use SizeMatters should be posted on the MODX Forums.


The full documentation for SizeMatters can be found at the author's web site (Bob's Guides): SizeMatters Documentation.

Support the team building MODX with a monthly donation.

The budget raised through OpenCollective is transparent, including payouts, and any contributor can apply to be paid for their work on MODX.



$0 per month—let's make that $500!

Learn more