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Pencil is built for the purpose of providing a free and open-source GUI prototyping tool that people can easily install and use to create mockups in popular desktop platforms.

What's New

Version 3.0.4:

Note: Now requires OS X 10.9 or later running on a 64-bit Intel processor

  • Fix an error where multiple error messages were shown while loading file
  • Fix font embedding error for Collection Builder
  • Fix incorrect bitmap/vector resource generating in Collection Builder
  • Support loading of multiple


  • OS X 10.9 or later

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Pencil User Discussion

4 3


Current Version (3.x)


Downloads 1,167
Version Downloads 51
License Free
Date 27 Jun 2017
Platform Intel 64 / OS X
Price Free
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