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Guideliner allows you to measure the dimensions of your screen layout.

Optimize your layouts for screen and Web publishing with GuideLiner. You can measure your Web and screen layouts, check and optimize them for smaller screens and work with guidelines in all applications. GuideLiner offers horizontal and vertical screen rulers and guidelines which can be placed free on your screen (even overlaying other applications). Use these tools and effectively measure and proof on screen, if your layouts have the right size, etc.

What's New

Version 1.22:
  • Now requires OS X 10.7 or later
  • Completely re-written 64-bit application
  • The Screen Simulation menu disables all resolution menu items which make no sense for the current screen resolution
  • All relevant icons updated into resolution-independent versions
  • Spanish localization added


  • OS X 10.7 or later

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Current Version (1.x)


Downloads 3,832
Version Downloads 133
License Shareware
Date 07 Nov 2014
Platform Intel 64 / OS X
Price $18.60
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