PicPick, Shottr, PixelSnap 2, PixelStick, Screen Calipers, Pixel Ruler, Free Ruler, JR Screen Ruler, KRuler, Art Directors Toolkit, JR Screen Ruler Pro, On-Screen Ruler, Bluegrams Screen Ruler, Meazure, Pixel Ruler for Android, PMeter, Screen Ruler Professional, ScreenRuler, Pixus, Pixel Ruler 2.0.2, Cubic Ruler, ReadingRuler, MezerTools, orangePixelMeter, PixelRuler, Window Ruler are some alternatives to A Ruler for Windows.