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.

Features:

• 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 view package contents
• 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
• Filter files and folders:
- Construct filter tests based an item's name, path, size, file type, hard-link status, and package status
- Use these filters to:
--Mask files in the view
--Filter files from the view
--Exclude files and folders when scanning a disk
- Filters and filter tests are automatically stored in the user preferences
• 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
• Support for hard-linked files and folders: Analyse Time Machine back-ups
• Save results of disk scanning operations: Reload and view again at any time
• Save images of views
• Configurable user preferences
• 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

Requirements:
OS X 10.9+
Universal Binary