DiskTree. Zach Mackay

A native macOS storage explorer

See where your
space is growing.

Models, projects, downloads, that folder you forgot about. Turn your Mac’s storage into a tree you can actually explore.

Made for curious people with very full Macs.

Local-firstmacOS 14+In development
DiskTree◉  Saved view
This Mac256 GB in this sample
Select a folder to explore its branches.Illustrative demo · sample data

Useful can be beautiful

Same files.
A different feeling.

Choose your leaves, change the season, find a favourite trunk. Mix them with a background that feels like you. Your data stays exactly where it is.

Or try a season on the tree

Original appearance selected. Try a look above to change the interactive tree.

Follow your curiosity

Find the space.
Keep the context.

A folder should look like a folder full of things. Start with the big picture, then go one branch deeper.

01 / EXPLORE

One folder at a time.

Each branch shows its immediate children. Bigger items take up more space. Dive into a folder, follow the breadcrumbs back, or pin the places you visit most.

Try the sample tree ↗
02 / DISCOVER

Go straight to Biggest.

Switch to a separate tree of your largest individual files. Adjust how many you see, then jump back to a file’s home folder when you need the context.

03 / DECIDE

Make room, deliberately.

Reveal items in Finder, investigate duplicates, and review exact paths before sending files to Trash. DiskTree doesn’t automatically delete your files.

Read about cleanup ↗

Pick up where you left off

Your tree remembers.
You choose when to refresh.

Open your saved snapshot without scanning again. Keep exploring while a refresh runs, then come back to updated information.

Want a rhythm? Growth lets you schedule quick and full scans for chosen branches, with battery-aware pausing. Schedules run while the app is open; continuous filesystem monitoring isn’t needed.

Quick scan a branch

Find new or removed items. Reuse saved sizes for existing paths.

Existing files can grow. Use a full rescan to check them.

Full rescan a branch

Remeasure that folder and everything below it. Leave other branches alone.

See how fresh it is

Separate “contents checked” and “sizes checked” dates make cached information clear.

For you. And the tools you use.

Give your assistant
a head start.

The bundled command-line tool reads the same saved index. Ask for big files or search for a model without asking an assistant to walk your whole drive again.

No account, cloud service or built-in AI required.
You choose what to share with an assistant.

Saved-index queries
DT="$HOME/Applications/DiskTree.app/Contents/MacOS/disktree-query"

# What’s taking up space?
"$DT" largest --limit 10

# Where are my model files?
"$DT" search safetensors --limit 20

Queries read saved metadata. Scanning is a separate action.

A few things to know

Clear by nature.

Does it scan my whole Mac, including hidden folders?

DiskTree can index accessible startup volumes and mounted local drives, including hidden files and folders. You can also choose one folder. Exclusions and macOS permissions still apply, and unavailable areas are labelled.

Does it need to keep scanning in the background?

No. Your snapshot is saved locally. Browsing and queries use that snapshot. You can refresh a branch manually or opt into schedules in Growth; scheduled scans run while DiskTree is open.

Are the sizes exact?

DiskTree shows logical file sizes and allocated disk-space estimates. APFS compression, clones, hard links and cloud placeholders can make those differ from physical space you could reclaim. Quick scans intentionally reuse existing sizes; full rescans recheck them.

Can I download it?

DiskTree is currently a personal macOS app in development. There isn’t a public download on this page yet. Get in touch if you’d like to ask about availability.

DiskTree app icon

Built with care for macOS

A small app.
A clearer view of your Mac.

Native SwiftUI and AppKit. Local snapshots. A tree that feels like yours.

Ask about DiskTree In development · macOS 14 or later · No public download yet