v0.1.2

Disk Tracker v0.1.2 — Find the 40 GB you forgot about

What's new in v0.1.2

Developer Caches. A new sidebar entry that measures the caches your dev tools leave behind — Xcode (DerivedData, device support, archives), the Simulator, Homebrew, npm/Yarn/pnpm, pip, Cargo, Gradle and Android — with one bar showing which tool takes the most. The caches in your home folder's hidden folders (npm, Cargo, Gradle, Android) can go straight to the Trash; for the rest, each row shows the tool's own cleanup command, ready to copy. It asks once for access to your home folder.

A new icon for macOS 26. The icon is now a Liquid Glass icon that follows macOS 26's light, dark, clear and tinted styles. macOS 15 gets the same design, flattened.

Fixes.

• Home now scans your home folder. It used to scan the app's own sandbox folder instead.
• Move to Trash works on scans reopened from History after a restart.
• Nothing inside a Library folder can be moved to the Trash any more — apps keep live data there. Those items point you to Show in Finder instead.
• When macOS won't let the app delete from a folder you didn't choose, the message now says how to fix it: open the folder with Choose Folder….
• In full screen, the sidebar stays at the left edge instead of drifting toward the middle.
• The welcome screen no longer draws a second, fake window inside the real one.
• Scans no longer wait behind low-priority background work.

Privacy and security.

• Release builds no longer allow a debugger to attach to the app. Earlier builds did.
• The scan engine is now sandboxed in its own right and runs inside the app's sandbox.
• A privacy manifest and a privacy policy: nothing leaves your Mac.

Installing

1. Open DiskTracker-v0.1.2.dmg and drag Disk Tracker to Applications.
2. Run this once in Terminal:

   xattr -dr com.apple.quarantine /Applications/DiskTracker.app
   

3. Open it normally.

Step 2 is required because this build is ad-hoc signed rather than
notarized — Apple notarization needs a paid Developer Program membership.
The command clears the "downloaded from the internet" flag on this app only;
it does not disable Gatekeeper system-wide, and the signature stays valid.

Right-click → Open does not work for ad-hoc signed apps on Apple
Silicon. The xattr command is required.

Requires macOS 15.0 or later.

v0.1.1

Disk Tracker v0.1.1 — Find the 40 GB you forgot about

What's new in v0.1.1

App Icon. The app now displays a custom icon instead of a blank placeholder. The icon is a squircle in brand indigo carrying a treemap of blocks, with one green for reclaimable space. Generated from code at each native resolution to stay readable at all sizes.

UI Fixes.

• Low-space alerts now correctly name the containing volume (e.g., "Macintosh HD") instead of the scanned folder
• Recent Scans timestamps show relative time once ("2 hours ago") instead of a live clock that redraws every second
• Welcome screen status bar displays the last scanned path instead of showing the untouched default

Installing

1. Open DiskTracker-v0.1.1.dmg and drag Disk Tracker to Applications.
2. Run this once in Terminal:

   xattr -dr com.apple.quarantine /Applications/DiskTracker.app
   

3. Open it normally.

Step 2 is required because this build is ad-hoc signed rather than
notarized — Apple notarization needs a paid Developer Program membership.
The command clears the "downloaded from the internet" flag on this app only;
it does not disable Gatekeeper system-wide, and the signature stays valid.

Right-click → Open does not work for ad-hoc signed apps on Apple
Silicon. The xattr command is required.

Requires macOS 15.0 or later.

v0.1.0

Disk Tracker v0.1.0 — Find the 40 GB you forgot about

Point it at a folder or a whole volume. It scans a million files in under two
seconds, draws you a map of where the space went, and lets you delete the
offenders without leaving the app.

Installing

1. Open DiskTracker-v0.1.0.dmg and drag Disk Tracker to Applications.
2. Run this once in Terminal:

   xattr -dr com.apple.quarantine /Applications/DiskTracker.app
   

3. Open it normally.

Step 2 is required because this build is ad-hoc signed rather than
notarized — Apple notarization needs a paid Developer Program membership.
The command clears the "downloaded from the internet" flag on this app only;
it does not disable Gatekeeper system-wide, and the signature stays valid.

Right-click → Open does not work for ad-hoc signed apps on Apple
Silicon. The xattr command is required.

Requires macOS 15.0 or later.

What you get

• Three ways to look at it — sunburst, treemap and list, all click-to-descend
  with a breadcrumb to climb back out
• Filters that find the junk for you — large, old, empty, duplicate and
  oversized-bundle, plus search and category filters
• Delete with your eyes open — Move to Trash one item or a whole batch,
  after a confirmation that states what you'd actually reclaim; protected
  system paths are refused outright
• Spacebar for Quick Look, exactly like Finder
• Export to JSON or CSV when you want the numbers elsewhere
• Live free-space readout with a low-space warning you can set
• Scan history that re-opens a previous scan without walking the disk again

Speed

Measurement	Target	Result
Scan 1M files	≤ 15 s	1.81 s
Memory, 1M files	≤ 300 MB	164.1 MB
Cold launch to first frame	≤ 2 s	0.287 s

A Rust core walks the filesystem with getattrlistbulk and Rayon work-stealing;
SwiftUI draws the result on an immediate-mode Canvas. Apple M3 Pro, reproduce
with ./benchmark --full.

Known limits

• Sizes are per-file, not per-extent. Two APFS clones of one file are
  reported as two files. du and Finder agree; reporting shared storage once
  is a later feature.
• Hard links are counted once per link, so a file with several is
  over-counted.
• Frame rate under live interaction is unmeasured. Layout uses 12.7% of a
  60 fps frame at 50,000 children, but end-to-end fps has not been captured.
• No auto-update. Download the next DMG manually.
• Network volumes, S.M.A.R.T. and APFS snapshot management are out of scope
  for v0.1.