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.
CSS Peeper - Smart CSS viewer tailored for Designers.
PixelSnap - Measure every pixel on your screen with ease ✨
Purgecss - Easily remove unused CSS
PixelSake - PixelSake is an excellent screen management program that allows users to select the different icons, objects, applications’ interface, and more with easy-to-use cropping tools or personalized specifications.
CSSViewer - A simple CSS property viewer