Developer: Erwin Bonsma

Current Version: 1.9.1

Last Updated: 10 months ago

Download Size: 2.2 MB - Download


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 file's 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:
• 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 item's 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:
• 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:
• Save, reload and view again at any time
• Save images of views

Snappy and responsive GUI:
• Optimized drawing of views
• Drawing and scanning are carried out in background threads

• Configurable user preferences
• Small memory and disk footprint
• Extensive help documentation


Release Notes:

System requirements
• Now requiring Mac OS 10.9 or higher

New features
• Ability to preview selected items using Quick Look
• Reset zoom and focus via toolbar controls
• Visualization of (estimated) progress while scanning

Help documentation
• Added "How to determine what is taking up miscellaneous used space"
• Added "How to scan packages"
• Added "How to explain differences in reported sizes"
• Various minor updates

Bug fixes
• Fixed: Dock icon does not accept drag and drop
• Fixed: Assertion failure when load of scan tree was cancelled
• Fixed: The Uniform Type Ranking window did not always open again after it had been closed
• Fixed: Let Escape key close Filter Selection Panel, Welcome Window, and Filters Window
• Fixed: When the free size reported by the system was not fully accurate, the miscellaneous used space was incorrectly set to a huge value
• Fixed: Using the same filter more than once failed because of an assert failure
• Fixed: Rescan did not work on views created by filtering an existing view
• Fixed: The filter description in the Filter window was not always updated when the selected filter view changed


Most Helpful Reviews

Version 1.7.0
Review by Nalarider

Excellent tool for understanding disk usage - I’ve been using the free version of this app for years. Once I found it in the Mac App Store I immediately bought it to support the author. This app gives you a wonderful visual understanding of what’s using your hard disk’s space. Once your folder/disk is scanned you can move your cursor over a block and the file name appears at the bottom of the window. If you want to go to that file, click the block then click the ‘Reveal’ button at the top. If you want to actually launch (open) the file, click the ‘Open’ button. This app is a real gem!

Found helpful by 8 out of 8 people
Version 1.9.1
Review by frederickbarthelme

Formerly OK, now a train wreck - Doesn’t work at all with High Sierra. Big unidentified boxes, nothing in drawer. Clearly not scanning anything. Maybe has to do with new file formats?

Found helpful by 2 out of 2 people

More Reviews for Current Version

Version 1.9.1
Review by Benjbenj

Love it! - Been using it for ages, purchased here to support the author. Please keep up the excellent job! :)

Found helpful by 3 out of 3 people
Version 1.9.1
Review by KSS_Bentley

no Bells and whistles - it Just Works! - I’ve used GP for a number of years. I’ve bought other similar apps in the past, and keep coming back to GP. I’m glad I can support the developer. Keep up the good work, for a something that does the job.

Found helpful by 1 out of 1 people
Version 1.9.1
Review by Raman Pfaff

Extremely useful - This is one of those apps I’ve been using for years to keep an eye on where free space is going. Easily worth a few bucks. Developer has always been very responsive.

Found helpful by 1 out of 1 people
Version 1.9.1
Review by Nchhangani

Useless, Dont waste your money - I though I will be able to use it to reclaim the purgable space….this is just a multo colr bolks and doesnt help anyways…i wish i can get my money back...

Found helpful by 1 out of 10 people
Version 1.9.1
Review by cbedgar

A solid little tool that has stood the test of time - I have used this app for many years on various Macs with various versions of Mac OS X. In all this time, it has been the best way to figure out what is filling up a disk. In the early days, there were a few bugs, and I mention this only because the app was so useful, one would put up with a few crashes because Grand Perspective was still the best way to get the job done. Now the app is a simple, solid tool, that I only use occasionally, but it absolutely indespensible when I need it. And it is solid now: I haven't had any trouble in years and years. The app presents the user with a large rectangular box which respresents the container that is being analyzed. Often the large box is a volume. Often it is a folder that needs a little more scrutiny. The box is filled with smaller boxes. The smaller boxes are the folders or files on the disk. The size of the little boxes represents the size of the files. Files in folders are boxes in boxes. There is a control to zoom in and out. Say, that big box there is my photos. Let's take a look at what is in there. That other box is apps. Wow, that one app is bigger than I thought. That's the idea. When you hover over a box, the interface tells you what the path is, how big the file is, etc. Anyway, Grand Perspective is a great little program that does it job well. I don't think you will be disappointed.

Found helpful by 1 out of 1 people