JR Screen Ruler Pro is a powerful, lightweight and highly accurate screen measuring tool. It gives users the ability to precisely measure any element on the screen using a variety of units, including pixels, inches, centimeters, and points. It also allows users to draw lines, measure angles, and create protractors. Additionally, users can add text and graphics to the ruler, and can save entire ruler configurations as templates for later use. JR Screen Ruler Pro is perfect for web designers and developers who need to measure anything on the screen.
Discontinued The program is no longer updated. The latest version, 1.0 R78, released in August 2009, can still be downloaded from Google Code.