WizTree for Mac
Short answer: there isn't one, WizTree is Windows only, and for a good technical reason. But the thing you actually want from it, a fast treemap that finds your space hogs in seconds, has a native home on the Mac.
WizTree is fast because it reads the NTFS Master File Table directly off the disk, skipping the slow file-by-file walk most tools do. That trick is the whole reason it can scan a drive tens of times faster than WinDirStat. It's also the reason it can't come to the Mac unchanged: macOS uses APFS, which has no Master File Table to read. The fast path simply doesn't exist there, so a native Mac tool has to earn its speed a different way.
Delve gives you the WizTree experience on the Mac: point it at a
drive, get a treemap in seconds, and the biggest files and
folders are impossible to miss. It can't read an MFT that doesn't
exist, so instead it uses getattrlistbulk to pull a
whole directory of file metadata per system call rather than one
entry at a time, which is the fast path on macOS. A 1 TB
volume with a few million files finishes in well under two
minutes on a base M2, and the treemap renders on the GPU so
it stays smooth while you explore it.
| Delve (Mac) | WizTree (Windows) | |
|---|---|---|
| Platform | macOS 26, Apple Silicon | Windows only |
| Visualization | Treemap + file list | Treemap + file list |
| Scan speed | Fast (bulk metadata calls) | Very fast (reads NTFS MFT) |
| Rendering | GPU, 60 Hz | CPU-drawn |
| APFS clone & hardlink accounting | Yes | N/A (Windows) |
| Native OS integration | Spotlight, Shortcuts, Quick Look | Windows shell |
| Price | Free | Free personal, paid commercial |
WizTree facts as of v4.31 (Mar 2026). If anything here is out of date, tell us at support@khaosstudio.com.
We'd rather point you somewhere useful than pretend Delve is the only choice. GrandPerspective is a free, open-source Mac treemap that runs on older and Intel Macs, which Delve doesn't. OmniDiskSweeper is a free list view if you don't need the picture. DaisyDisk is a polished paid sunburst at $9.99. And if you came to WizTree from WinDirStat, that page is worth a look too. On recent Apple Silicon, if you want WizTree's fast-treemap workflow done natively and free, that's Delve.
Coming from WizTree, you want speed and a treemap with no fuss. Delve gives you both on Apple Silicon, free, even if it reaches that speed through a different door than the MFT.
On an older or Intel Mac, GrandPerspective is the free treemap that'll actually run for you.
No, it's Windows only, because its speed depends on reading the NTFS Master File Table. The closest native Mac equivalent is Delve, a free treemap that scans fast with bulk filesystem calls. GrandPerspective is another free Mac treemap.
WizTree reads the NTFS Master File Table directly for its
speed. APFS, the Mac filesystem, has no equivalent table,
so the technique doesn't port. Delve uses
getattrlistbulk as its fast path instead.
Delve scans large volumes quickly with
getattrlistbulk (a directory of metadata per
syscall) and draws the treemap on the GPU. A 1 TB
volume finishes in well under two minutes on a base M2.
Yes. Delve is free, deletion included, no subscription or account. WizTree is free for personal use on Windows and paid for commercial use; Delve is free for everyone.