TopRuler lays rulers over everything on your screen. Measure windows, spacing, images and slanted distances right in the app you are working in. One shortcut brings the rulers up, another puts them away. ACROSS THE WHOLE SCREEN • Rulers across the full width and height, on 5K and 6K displays too, and up to the diagonal when turned • A red line follows the pointer on both rulers and shows the distance from zero, above other apps as well • Pull the end to set the length, place it with the mouse or pixel by pixel with the arrow keys PIXELS, MILLIMETERS, INCHES • Pixels count like Preview and the window sizes of macOS • Millimeters and inches follow the size your display reports • With the ruler straight, every tick sits on exactly one screen pixel SQUARE AND ROTATION • Both rulers or just one • Joined into a carpenter's square if you like: scales on the inner edges, zero in the inner corner • Turn to any angle, gently snapping in every 15 degrees; you can also type the exact angle YOUR WAY • Six colors and Liquid Glass, opacity to taste • Your own shortcut, Control-Option-R out of the box • Lives in the menu bar, Dock icon hidden if you like • Clicks next to the rulers reach the windows underneath MADE FOR THE MAC • A real Mac app, no web view • No internet connection, no account, no tracking • 10 languages, switch without restarting • Optional log file for support • macOS 15.6 and later, Liquid Glass from macOS 26 A detailed manual is available at klausmack-software.com.
Developer Tools · iPhone, iPad · Free
