xScope - xScope is an excellent utility that is used to measure the graphic layouts or any application’s dimensions for checking the operating systems’ compatibility with the desktop screen.
Sketch - Professional digital design for Mac.
PixelSnap - Measure every pixel on your screen with ease ✨
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
QuickLens - Inspect the UI of apps, illustrations & websites like a pro
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.