GrandPerspective can help you to manage your disk, as you can easily spot which files and folders take up the most space.

GrandPerspective uses a so-called tree map for visualization. Files in the same folder appear together, but their placement is otherwise arbitrary. Each file is shown as a rectangle with an area proportional to the file's size.

Here are some key features of "GrandPerspective":

· Disk usage visualisation by way of tree maps
Configurable display of views:
· Choice of color mapping schemes
· Choice of color palettes
· Configurable mapping by file type
· Optionally hide specific files by way of a mask
· Optionally view the entire volume
· Convenient navigation of views: Traverse up and down the folder hierarchy, Select files and folders in the view
· Reveal files and folders in the Finder
· Delete files and folders from the view
· Multiple view support: Re-scan a view to compare results before and after clean-up, Twin or duplicate a view for different displays of the same data, Filter a view to focus on specific files
· Configurable user preferences
· Generate images from views
· Snappy and responsive GUI: Optimized drawing of views, Drawing and scanning are carried out in background threads
· Small memory and disk footprint
· Fully internationalized: Localizations available in English, Japanese, German, Spanish, French and Dutch
· Extensive help documentation
· Available as a Universal Binary

What's New in This Release: [ read full changelog ]

Minor improvements:
· Added number of scanned and deleted files to Info panel.
· Added Rescan button to toolbar.
· Rescan can now optionally close the old window.
· Added context menu to views to let you Reveal, Open and Delete selected files.
· Added ability to store user-editable comments with saved scan data.
· Scan data is now stored in files with a .gpscan extension.
· These files have their own icon and filetype, and are associated with the application.
You can now invoke the application from the command line with:
· a path of a folder to scan, or
· a path of a scan data file to load.

Bug fixes:
· Fixed bug #2562846: Failure to load scan data.
· Incorrect saving of scan data in OS X 10.4 should be fixed now.
· Freed space did not correctly reflect deletion of hard-linked files.

Documentation:
· Added various advanced "How To" sections to the help documentation.