I'm looking for a Chrome Extension or setting that will display the current window's resolution in pixels. It will be used primarily in web development, and so fast and discreet is preferable. Free and open-source is also preferred if possible.
After today, latest Chrome for Mac does not show the upper right corner dimensions area. Instead of that, one must open DevTools (as before), click on "Toggle device mode" icon and select "Responsive". Now it will show the dimensions again.
You will see the window dimensions in the upper right corner of the client area if you open the Chrome developer tools (F12) and resize the window. No extension needed.