Check the dimensions of a photo without Photo Editing software

Photo quality and correct dimensions online can either boost or deter engagement from the post and your business. But how do you check the dimensions of your photo on your computer without a form of software?
On PC, when hovering your mouse over an image the pop-up info box will appear showing the file’s dimensions. Alternatively as a file, you can right-click, select Properties from the menu and click on the Details tab in the Properties box.
On Mac, right click (or “control” + click) and choose “Get Info” and it will bring up a variety of information including the dimensions. Or from the Finder go to the View menu selecting “column view” and then click on the file which will bring up information under a preview of the image.
There currently aren’t built in functionalities yet on phones but there are apps available for download that are able to find this information.