Open Peeps - A hand-drawn illustration library.
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.
Control Illustrations - 108 free flat illustrations with customizable characters
PixelSnap - Measure every pixel on your screen with ease ✨
DrawKit - MIT licensed SVG illustrations, in 2 styles
QuickLens - Inspect the UI of apps, illustrations & websites like a pro