WizTree for Mac: WizTreeMac and the Alternatives

Yes, WizTree Now Runs on a Mac

WizTree has been the go-to disk space analyzer on Windows for a long time, mostly because of how quickly it maps a drive. Mac users who switched platforms, or who use both, had to settle for something else. On 16 September 2026, Antibody Software released WizTreeMac 1.00, an official Mac version.

It requires macOS 12 or later and ships as a Universal app, so it runs natively on Apple Silicon and on Intel Macs. You download it as a DMG from the vendor's site; it is not on the Mac App Store. The vendor describes it as having almost all of the Windows features, built on the same code base as WizTree 4.33 for Windows.

What Is Different on macOS

WizTree's reputation on Windows comes from one technique: it reads the NTFS Master File Table directly, a single index of every file on the drive, instead of opening folders one at a time. That is why it needs administrator rights on Windows, and why it is famously fast.

Macs format their drives with APFS (or HFS+ on older disks), and neither has an equivalent of the MFT. WizTreeMac therefore uses macOS bulk directory enumeration, spread across multiple threads. That is a sound approach, but it is a different one, so do not expect the Windows behavior to carry over exactly. Scan time will depend on your drive and how many files are on it.

Permissions also work differently. macOS hides much of the disk from apps until you grant Full Disk Access in System Settings → Privacy & Security. For root-level folders, WizTreeMac also offers a Restart as Administrator option. Skip either step and parts of the drive will be missing from the map, which is the most common reason a scan total looks too small.

What Stays the Same

The core experience is familiar. You get WizTree's treemap, where every file is a rectangle sized by the space it takes, alongside the folder tree. If you learned to spot a bloated folder by its block of color on Windows, that skill transfers directly.

Licensing is the same too. WizTreeMac is free for personal use, and commercial use needs a Supporter Code (Individual $25, with higher business tiers). Supporter Codes work on both Windows and Mac, so an existing code covers the new app as long as it falls within the code's one-year window for new releases.

One thing to keep in mind: this is a 1.0, released in September 2026, and some Windows features are not there yet. Scanning phones over MTP, for example, is not supported on the Mac.

The Other Mac Options WizTree Fans Look At

Before WizTreeMac existed, people searching for it landed on a handful of Mac tools. They are all still good choices, and each has a different strength.

• DaisyDisk is the classic Mac disk analyzer, built around an interactive ring chart rather than a treemap. It costs $9.99 one-time, covers up to five personal Macs, and runs on macOS 10.13 or later on both Apple Silicon and Intel. The Mac App Store edition is sandboxed, so it cannot scan as administrator or reveal purgeable space; the direct download can. Our DaisyDisk alternatives guide goes deeper.
• GrandPerspective is the closest Mac equivalent to WizTree's view: a treemap, open source under the GPL. It is free from SourceForge or $2.99 on the Mac App Store for the same app. Current versions need macOS 14; version 3.7.2 still covers macOS 11 to 13.
• OmniDiskSweeper from the Omni Group is free and skips the chart entirely. It lists folders largest to smallest in a column browser, with buttons to open or trash an item. It is a side project rather than a core Omni product, but for a quick look it is enough.

macOS itself also helps more than people expect. System Settings → General → Storage, then the (i) next to Documents, lists large files and downloads. For a walkthrough of those built-in routes and Terminal commands, see how to find large files on a Mac.

Where LumaDisk Fits

LumaDisk is a native disk space analyzer for macOS and Windows, built in Rust with GPUI, the GPU-accelerated stack behind the Zed editor. It maps the whole drive as an interactive sunburst or a treemap, one click apart, so if you want WizTree's rectangles you can have them. The chart draws while the scan is still running, with the largest finds so far and a time-left estimate.

The bigger difference is what happens after the map. A treemap shows you where space went; LumaDisk also helps you decide what to remove:

• Build-cache radar groups regenerable developer folders such as node_modules, Rust target, .next, Xcode DerivedData and .gradle. It only lists folders that rebuild themselves.
• Duplicates are grouped with the copy to keep already ticked, and one copy of each group always stays.
• Unused lists files of 100 MB or more that you have not opened in six months, one year or two years.
• Cloud drives such as iCloud Drive, OneDrive and Dropbox are mapped, including cloud-only files.

Nothing is deleted automatically. You queue items into LumaDisk's own Bin and reclaim them with a ten-second undo. Reclaiming deletes permanently rather than moving files to the Trash, and system folders can never be queued.

The same app runs on Windows through the Microsoft Store, where an optional Fast Scan reads the NTFS Master File Table, the same trick WizTree uses. If you move between a Mac and a PC, you keep one tool on both. On the Mac it needs macOS 12 or later on Apple Silicon; it does not support Intel Macs, which WizTreeMac does. After a 7-day trial, scanning and the sunburst stay free, and the rest is a one-time $6.89 with all future updates, covering up to five Macs.

Side by Side

Which Should You Pick?

You liked WizTree and want the same thing on your Mac: use WizTreeMac. It is the official app, it is free for personal use, it runs on Intel Macs as well as Apple Silicon, and your Supporter Code carries over. Give it Full Disk Access first, and check the vendor's release notes for what the Mac edition does not do yet.

You want a free, open-source treemap: GrandPerspective does exactly that. If you just want a sorted list and no chart, OmniDiskSweeper is free and enough.

You prefer a ring chart and a polished Mac-only app: DaisyDisk is the classic choice. Buy it directly if you want administrator scans and purgeable space.

You are a developer, you work on both Mac and Windows, or you want to clean up rather than just look: LumaDisk is built for that. The build-cache radar, duplicate finder and unused-file list turn the map into a short list of things you can safely remove, and the same app runs on your PC. If you also look after Windows machines, our WinDirStat alternatives guide compares the Windows side.