GrandPerspective for MAC
Free, open-source disk usage viewer for Mac: a tree map shows each file as a rectangle, so you can spot what takes up the most space at a glance.
GrandPerspective Overview
GrandPerspective is a small utility for macOS that graphically shows the disk usage within a file system. It uses a tree map for visualization: each file is shown as a rectangle with an area proportional to its size, and files in the same folder appear together. That makes it easy to spot which files and folders take up the most space and to manage your disk.
You pick a folder, GrandPerspective scans it, and the view opens. Hover over the view to see the name and size of any item, and move the focus up to its folders. You can color the view by folder, file type or creation date, apply a filter, rescan what changed and delete items from the app. Scan results can be saved to load again later or exported as text to use elsewhere. GrandPerspective is made by Erwin Bonsma and is open source under the GPL-2.0 license. It is free from SourceForge and costs $2.99 on the Mac App Store; the developer says it is the same app either way. Version 3.8.1 improves diagnostic logging. It needs macOS 14 or later. The download is a DMG, and the project does not state the architecture on its site.
Key Features
GrandPerspective shows your disk as one picture you can explore.
- Tree map view: each file is a rectangle sized in proportion to the file.
- Folder scans: scan any folder, or reopen a recently scanned one.
- Item details: hover to see the name and size of a file or folder.
- Coloring: color by folder, file type or creation date, with a choice of palettes.
- Filters: filter a view, or scan with a filter straight away.
- Focus: move the selection and display focus through the folder hierarchy.
- Rescan: refresh a view after the contents of a folder have changed.
- Save and export: save scan data as XML or export it as text.
What’s New in Version 3.8.1
GrandPerspective 3.8.1 is a small update.
- Minor improvements to diagnostic logging
GrandPerspective FAQ
Is GrandPerspective free?
Yes. It is free from SourceForge and open source under the GPL-2.0 license. The Mac App Store version costs $2.99, and the developer says it is the same app.
What is the difference between the free and the App Store version?
It is the same app. From the App Store you get Apple’s review and automatic updates, and the fee helps cover development and distribution costs.
Which macOS version does GrandPerspective need?
GrandPerspective 3.8.1 needs macOS 14 or later.
How does GrandPerspective show disk usage?
It uses a tree map. Each file is a rectangle with an area proportional to its size, and files in the same folder appear together.
Can I delete files from GrandPerspective?
Yes. The app has a Delete command. Its help warns to be extra careful with it when viewing loaded scan data.
What can I color the view by?
You can color it by folder, file type or creation date, with a choice of palettes.
Can I save a scan?
Yes. Save Scan Data stores the view as compressed XML to load later, and Export As Text writes the data to a text file for use elsewhere.
Can I rescan after deleting files?
Yes. The Rescan command gives you an up-to-date version of the view, for all of it or only part of it.
Can I install GrandPerspective with Homebrew?
Yes. Run brew install --cask grandperspective.
Where does the GrandPerspective download on grandperspective.FULLMAC.app come from?
The download button leads to the official GrandPerspective website at https://grandperspectiv.sourceforge.net/. grandperspective.FULLMAC.app does not change or repackage the app.
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FULLMAC.app does not host this app. Download buttons lead to the developer’s own pages.