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Free Ruler is a screen ruler for OS X with many intuitive features. Great for Web developers, graphic designers and programmers.
- A horizontal and vertical ruler which can be used independently or simultaneously.
- Measurement in pixels, inches, picas, or centimeters.
- Automatic alignment of rulers.
- The ability to group rulers and move them around as a unit.
- Shadowless rulers with customizable transparency.
- Interactive tick marks which follow the mouse location for more precise measurement.
- Independent resizing of rulers, from 200 pixels to 5000 pixels in length.
- Single key shortcuts for most ruler functions.
- Conversion assistant to set ruler resolution based on screen size and resolution.
- Unit converter utility for converting numbers between different units of measure.