GizmoLoupe is described as 'simple utility to analyze (with zoom) images of your screen, measure'. There are more than 10 alternatives to GizmoLoupe for Windows, Mac and Online / Web-based. The best alternative is Meazure, which is both free and Open Source. Other great apps like GizmoLoupe are PixelStick (Paid), On-Screen Ruler (Free), Yardstick+ (Free) and Meander (Free).
What are the dimensions of that image? How big is this window? Does this layout fit on an NTSC display? What color are these pixels? What does this icon look like close up? How can I capture an arbitrary portion of the screen?
On-screen Ruler is a lightweight, free, semi-transparent ruler to measure portions of the screen. It has a lot of features (and related keys shortcuts) and several language translations are available too.
Yardstick is a small Utility, which helps you to measure anything, you can display on your screen. You draw a line or a polygon across the document to measure and Yardstick tells you the overall leng th and the area enclosed by the polygon.
An original way to measure routes, shapes, areas, anything that you can see on your screen Simply draw your line with mouse clicks on a nearly-transparent window over your map, chart or diagram Set Meander's scale against a known distance A selection of units included;...
Window Ruler is a program that permits you to: • Test if your application windows fit in a certain screen resolution (very useful for developers!); • Measure any window by dragging the red ball (left-upper corner).