DiskX 1.0.0 — first public release
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Caution
Superseded — this build contains a reproducible crash. A folder holding sparse files with very large reported sizes (zero bytes on disk, and shippable inside an archive or served by a network mount) aborts the app mid-scan and does so on every retry. Fixed in 1.0.2 — please update.
The first public release of DiskX — a free, open-source macOS disk space analyzer that sorts by what's safe to delete first, not just by size.
Install
- Download
DiskX-1.0.0.dmgbelow, open it, drag DiskX to Applications. - This build is ad-hoc signed and not yet notarized (notarization requires a paid Apple Developer account), so macOS will block it on first launch. Open it once with right-click → Open → Open, or clear the quarantine flag:
xattr -dr com.apple.quarantine /Applications/DiskX.app- To scan
~/Libraryand system paths, grant Full Disk Access in System Settings → Privacy & Security. Without it DiskX shows an honest "N folders unreadable" chip rather than silently undercounting.
Requires macOS 14 Sonoma or later. Universal (Apple Silicon + Intel).
What's in it
- Reclaim Sort — the default ordering:
reclaimable bytes × safety tier × staleness. Deterministic and inspectable, never AI. Every row carries a plain-language WHY line. - Ghost-row hoisting — deep junk like
DerivedDataornode_modulesis lifted to the top level as↳ …/Xcode/DerivedData · 6 levels deep, so you never drill down repeatedly. - Truth Bar — capacity accounting that reconciles with Finder, including an honest explanation of "System Data" and purgeable space.
- 100 % keyboard —
jk/arrows to move,Xto mark across folders,Spaceto Quick Look,1–5to re-sort,Gfor goal mode,?for the cheat sheet. - Fear-free deletion — select any mix, press
Delete, confirm withReturn/Y(orEsc/Nto cancel). Risk-proportional: if anything is yours,Returngoes inert and an explicitYis required. Everything goes to the Trash — never a permanent delete — and⌘Zrestores the whole batch. - Fast — 1.33M files in 45s (~29,000 files/sec), about 2.4× faster than
duon the same tree; whole-tree reclaim analysis in ~1.2s. - Private — entirely on-device. No telemetry, no network calls, no background agents.
Verify the download
SHA-256 5b8f516cde17f68f53a09946e4680332376f25faad7b88940b3d583d0b5d2c4a
Known limitations
- Not notarized yet (see install step 2). A notarized and Mac App Store build is planned.
- The sandboxed App Store variant can only scan folders you explicitly grant.
- Duplicate-file detection and scheduled baselines are not in 1.0.
Built with a multi-agent AI orchestration pipeline — see How it was built.