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GrandPerspective is a small utility application for Mac OS X that graphically shows the disk usage within a file system. It can help you to manage your disk, as you can easily spot which files and folders take up the most space. It uses a so-called tree map for visualisation. Each file is shown as a rectangle with an area proportional to the file's size. Files in the same folder appear together, but their placement is otherwise arbitrary.

What's New

Version 1.5.1:

Minor improvements:

  • Added support for reporting file sizes with decimal-based units (where 1 kB is 1000 bytes instead of 1024 bytes). [#3556570]
  • Added ability to copy path of selected item to paste board. [#3537974]
Bug fixes:
  • Fixed bug: Rescanning a deleted directory could crash the app [#3552571]


OS X 10.5 or later

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Current Version (1.x)


Downloads 131,661
Version Downloads 73,598
License Free
Date 25 Aug 2012
Platform OS X / PPC 32 / Intel 32
Price Free
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