See what's
eating your disk.
Quarry is a fast, native disk-usage explorer written in Rust. Scan a drive in seconds, then find the big stuff two ways: a sortable size tree-table and a cushion-shaded treemap.
Free · Windows 64-bit · ~11 MB · no telemetry · checksum & details
QuarryFind the big stuff. Fast.
A clear picture of your disk in one quick, native window — no installer, no bloat, no telemetry.
Treemap
A squarified, cushion-shaded map colored by file type. Every box is a folder or file, sized by what it uses, so the biggest space hogs jump right out. Click to drill in.
Size tree-table
Folders and files sorted largest-first, expandable, with usage bars and item counts. Virtualised, so it stays snappy even with hundreds of thousands of files.
Parallel scan
Walks the filesystem across every CPU core at once, on a background thread with live progress. The window never freezes, even mid-scan of a full drive.
Drive picker
Scan any detected drive, a folder you pick, or drop a folder on the exe. Jump back up with a clickable breadcrumb.
Delete & reveal
Send a folder or file straight to the Recycle Bin: right-click or the Delete key, with a confirm. Reveal anything in Explorer. Recoverable, never a hard delete.
Native & light
One ~11 MB Rust binary. No runtime to install, nothing phoning home. Reveal anything in Explorer with a click.
Reclaim space, safely
Finding the big stuff is only half of it. The Reclaim tab clears what you don't need, and everything it removes goes to the Recycle Bin, so nothing is ever a hard delete.
Smart suggestions
One scan sizes the usual space hogs — temp files, thumbnail and browser caches, npm / pip / cargo / NuGet caches, crash dumps, the Recycle Bin — and ranks them by how much you'd get back, each tagged Safe or Review.
Patch cleaner
Finds orphaned Windows Installer patches: the cached .msi / .msp files in C:\Windows\Installer that no installed program references anymore (the classic PatchCleaner job). Often several GB, and safe to remove.
Built for big drives
A 2 TB drive has millions of files. Quarry walks them in parallel across all your cores and builds a flat in-memory tree, so the scan finishes while other tools are still warming up, and the UI only ever draws the rows on screen.
Scan in parallel
Every subdirectory is walked on its own core (rayon), summing sizes bottom-up.
See it two ways
Flip between the size tree-table and the treemap, same data, whichever reads faster for you.
Reclaim
Drill to the culprit, reveal it in Explorer, or send it to the Recycle Bin and watch the totals update.
// every subdirectory, scanned in parallel let children = subdirs .into_par_iter() // all cores .map(|dir| scan(dir)) // recurse .collect::<Vec<_>>(); let total = own_size + children.iter().map(|c| c.size).sum::<u64>();
Get Quarry for Windows
Windows 10 / 11 · 64-bit · v0.5.0 · ~11 MB · free
SHA-256 e287885ba3ba562c76feccab0168a3a10f50c017b2435d5ce3eb964bafa92a5d
Unsigned build. Windows may show “Windows protected your PC.” Click More info → Run anyway.