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?

GizmoLoupe is described as 'Simple utility to analyze (with zoom) images of your screen, measure the dimensions of objects on the screen and determine pixels color' and is an app. There are more than 10 alternatives to GizmoLoupe for Windows, Mac and Web-based. The best GizmoLoupe alternative is Meazure, which is both free and Open Source. Other great apps like GizmoLoupe are On-Screen Ruler, PixelStick, Yardstick+ and Meander.
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.
PixelStick is a tool for measuring distances and angles on the screen. Excellent for designers or anyone who wants to measure a distance on their screen in any window or application.
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



PixelRuler is a free only for private use software for measuring horizontal and vertical distances on the entire screen, and is ideal for web designers and graphic artists. It has additional functions like a adjustable zoom window and a color value determination (RGB, HTML and...

Measure the pixel size of anything on your screen with orangePixelMeter, a nice, free Windows software utility.



Pixel Ruler is a handy, free Windows software to measure any object on your screen with a portable ruler.





Measure anything on your computer screen with accuracy with the Screen Calipers. More accurate than a ruler and available for Windows and Mac.

MB-Ruler measures distances and angles on the screen and distances on a map.
It has a screen loupe function, a RGB value window and you can place temporary points, lines, rectangles, ellipses, polylines, texts and bitmaps as markers on the screen.