GrandPerspective is a small utility application 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.
Disk usage is visualised using tree maps. Each file is shown as a rectangle with an area proportional to the files size. Files in the same folder appear together.
Configurable display of views:
• Color files by their: name, extension, file type, parent folder, top folder, level in the folder hierarchy, creation time, modification time, or last access time
• Choice of color palettes
• Configurable mapping by file type
• Optionally view package contents
• Optionally view the entire volume
Convenient navigation of views:
• Navigate using mouse or keyboard
• Quickly search for files by name
• Traverse up and down the folder hierarchy
• Select files and folders in the view
• Preview files using Quick Look
• Reveal files and folders in Finder
• Delete files and folders from the view
Filter files and folders:
• Construct filter tests based an items name, path, size, file type, hard-link status, and package status
• Filters and filter tests are automatically stored in the user preferences
Use these filters to:
• Mask files in the view
• Filter files from the view
• Exclude files and folders when scanning a disk
Multiple view support:
• Refresh or rescan 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:
• Save, reload and view again at any time
• Export scan results as image or text
Snappy and responsive GUI:
• Optimized drawing of views
• Drawing and scanning are carried out in background threads
• Animated changes to view content
Furthermore:
• Configurable user preferences
• Small memory and disk footprint
• Extensive help documentation
