01 The short version
Choose DaisyDisk if direct cloud-account scanning or its sunburst navigation is central to your workflow. Choose GrandPerspective if you want a free, open-source treemap with filters and saved scans.
Both support Quick Look previews. Both support Apple Silicon and Intel, subject to the macOS requirements of the version you install.
02 Side by side
DaisyDisk and GrandPerspective compared| Feature | DaisyDisk | GrandPerspective |
|---|
| Price | $9.99 direct, one-time | Free from SourceForge; $2.99 on the App Store |
|---|
| Primary view | Sunburst | Treemap |
|---|
| Quick Look | Yes | Yes |
|---|
| Connected cloud accounts | Dropbox, Google Drive, OneDrive, Box | Documents support for remote cloud files; not the same workflow as connecting an account |
|---|
| Analysis workflow | Browse the map and stage files in a Collector | Custom filters, saved scans, image and text exports |
|---|
| Current requirements | macOS 10.13+, Intel or Apple Silicon | macOS 14+, Intel or Apple Silicon |
|---|
| Source availability | Commercial product | GNU GPL open source |
|---|
Sources: DaisyDisk specifications and GrandPerspective features and requirements. Check cloud-file behavior against the provider and workflow you use.
03 What the two views help you see
A sunburst lays out the folder hierarchy in rings. It can be a useful way to follow a path into a large directory. A treemap allocates rectangular space to files and groups them by folder, making the relative size of neighboring items visible.
Neither layout is universally easier. Try a familiar project or media folder. Look for the largest item, then return to the parent folder. Choose the view that keeps you oriented.
04 Consider the cleanup workflow
DaisyDisk lets you collect items before removal. Its deletion guide says the final action permanently deletes files rather than moving them to the system Trash. GrandPerspective supports file removal from its view; review the app’s settings and confirmation before acting.
A preview helps identify a file, but it does not prove that a project or application no longer needs it. For managed libraries, backups, and developer tools, prefer the owning app’s cleanup controls.
05 Where Delve fits in this comparison
We publish this guide as the makers of Delve. If you want both a treemap and a sunburst, Delve offers the two views with Quick Look and a Collector that moves your selected files to the Trash. After a 14-day free trial, support our work for $4.99 once or get Delve free through referrals. It runs on macOS 26 or later on Apple Silicon.
Our recommendation
Start with GrandPerspective if a free treemap meets your needs. Choose DaisyDisk for its cloud connections or sunburst workflow. Try Delve if switching between both visual views and reviewing a batch before moving it to the Trash is useful to you.
Common questions
Is GrandPerspective a free alternative to DaisyDisk?
Yes. Its SourceForge release is free and open source. It uses a treemap rather than DaisyDisk’s sunburst and offers its own filters, saved scans, and export tools.
Do both apps run on Intel Macs?
Yes. DaisyDisk lists macOS 10.13 or later. GrandPerspective’s current release requires macOS 14 or later, with earlier releases available for older systems.
Does DaisyDisk support Quick Look?
Yes. DaisyDisk and GrandPerspective both support Quick Look file previews.
Which one is more accurate?
We have not published a controlled accuracy comparison. Tools can use different size definitions, scan scopes, and permission levels. Match those settings before comparing totals.
Sources and further reading
Product details checked September 19, 2026. Prices are in USD where shown; storefronts, taxes, and offers may differ. Recommendations reflect the workflows described here, without a comparative performance benchmark.
Continue with Delve vs DaisyDisk, Delve vs GrandPerspective.
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