What's eating my disk?
Overview % breakdown, then drill into heavy folders on demand — no full-tree walk upfront.
In the app
Local · private · cross-platform
Overview-first disk analyzer with drill-down scanning, cleanup insights, Docker reclaim, and support-ready exports. Runs on your machine — nothing leaves localhost.
Overview % breakdown, then drill into heavy folders on demand — no full-tree walk upfront.
Detects node_modules, .venv, target/, and common caches.
Flags large .exe, .zip, .msi files in Downloads and similar folders.
Maintenance preset runs a confirmed docker system prune (volumes kept). Needs Docker CLI +
daemon — never deletes Desktop data folders or VHDX files.
Copy a report or export a plain-text support ticket for IT — treemap, tree, and insights included.
disk-tool classifies paths so you know what is safe to review or delete. Deletes use review → dry-run → type
DELETE. Virtual disks (.vhd/.vhdx/…) stay non-deletable.
| Zone | Meaning | Delete via disk-tool? |
|---|---|---|
| review | Regenerable dev artifacts | Yes, after review |
| maintenance | User temp folders | Yes, with age filter |
| caution | Shared caches, Docker data roots | Review carefully (Docker roots not FS-deletable) |
| diagnostic | Crash dumps, minidumps | View only |
| critical_os | Windows, /usr, Program Files | No |
| forbidden | System32, /proc | Hidden from scan |
Download a pre-built binary from Releases (Windows, Linux, macOS), or build from source below.
# After download
./disk-tool serve
# Or build from source (Node.js + Go)
cd web && npm ci && npm run build && cd ..
cp -r web/dist/* cmd/disk-tool/static/
go build -o bin/disk-tool ./cmd/disk-tool
./bin/disk-tool serve