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What is my browser window width?

This browser window is

wide, including the scrollbar.

If you resize the window, refresh the page to see the new width.

I added this tool to help with my CRO browser testing. When setting up an A/B test, it's essential the new variations look and function as required on all devices.

If they don't, you'll have to amend your CSS code for different @media breakpoints.

Knowing the pixel width of your current browser window makes this job much easier.

This works great on tools like CrossBrowserTesting.com.

TIP: While we're on the subject of @media breakpoints. In Google Analytics, record the breakpoint a user is viewing. It's much more insightful and relevant to you than the Device Category. You can learn more about it in this handy blog post I wrote.