See what is taking up your disk space, and take it back.
A free, open source disk space analyzer for macOS, Windows and Linux.
Download · 2drivescan.app · Feedback
- Interactive sunburst or treemap. Every ring (or box) is a folder level. Hover to inspect, click to zoom in, click the center to go back. Transitions are animated so you never lose your place.
- Fast. A parallel scanner written in Rust reads hundreds of thousands of files per second (on macOS with
getattrlistbulk). It counts the space files actually take on disk (sparse files and hard links are handled correctly), stays on one volume and never downloads files that only live in iCloud or other cloud folders. - Scans are saved. Reopen the last scan of a drive instantly. A rescan only reads folders that changed, usually in seconds, and an interrupted scan continues where it stopped.
- See what changed. Every scan is compared with the previous one: the Changes tab and the "Changes" colors show what grew, what shrank and what is new.
- Duplicate files. Finds files with identical contents (compared by size, then by checksum, not by name) and collects the extra copies, keeping one.
- Cleanup suggestions. Caches, build output (Xcode DerivedData,
node_modules), old phone backups, old downloads and the Trash, with their sizes. Only suggestions: you review everything in the Collector. - Hidden space. When you scan a whole drive, used space that no file accounts for (snapshots, swap, system files, folders you cannot read) is shown as its own segment, so the numbers add up.
- Find the big stuff. The side panel has a sorted folder list, the largest files anywhere below the current folder, a file type breakdown (video, images, archives, code…) and instant search.
- Color by folder, file type or change. Switch modes to see at a glance what kind of data fills a folder.
- Your scan, your way. Filter the largest files by age, exclude folders from scans, and export folders and sizes as CSV.
- Collector. Drag items from the chart or the list into the Collector, review them, and move them to the Trash or Recycle Bin in one go. Nothing is ever deleted permanently, so you can always restore items.
- Native everywhere. Light and dark mode, English and Dutch, reveal in Finder, Explorer or your file manager, and keyboard shortcuts.
- Settings. Theme, language, 1000- or 1024-based sizes, chart depth and animations, saved scans, and
updates, in one window (
Ctrl/⌘ + ,). - Automatic updates. One click installs a new version; updates are signed and verified.
Get the latest installers from the Releases page:
| Platform | Installer |
|---|---|
| macOS 10.15+ (Apple Silicon & Intel) | .dmg (universal) |
| Windows 10/11 (x64, ARM64) | -setup.exe (or .msi for x64) |
| Debian, Ubuntu, Mint, Pop!_OS | .deb (amd64, arm64) |
| Fedora, openSUSE, RHEL | .rpm (x86_64, aarch64) |
| Any other distribution | .AppImage (amd64, aarch64) |
macOS: grant 2DriveScan Full Disk Access in System Settings → Privacy & Security for a complete scan. If macOS refuses to open an unsigned build, click Open Anyway in the same settings pane.
| Action | Shortcut |
|---|---|
| Go up one level | Esc, Backspace or Alt + ↑ |
| Search in the current folder | / or Ctrl/⌘ + F |
| Rescan (only changed folders) | Ctrl/⌘ + R |
| Full rescan | Alt/Option-click the rescan button |
| Settings | Ctrl/⌘ + , |
2DriveScan is a Tauri 2 app: the scanner and system integration are written in Rust, and the interface is plain HTML, CSS and JavaScript (no bundler) rendered on a canvas.
crates/scan-core Parallel scanner, tree model and saved scans (pure Rust, unit tested)
src-tauri Desktop app: commands, volumes, trash, packaging config
ui Interface (index.html, css/, js/). js/mock.js is a demo backend
scripts Preview server and version bump helper
website Laravel site for 2drivescan.app (see website/README.md)
assets Icon source (make_icon.py renders icon.svg)
Requirements: Rust (stable), Node.js 18+, and on Linux the Tauri system dependencies.
npm install
npm run dev # run the app with live reload
npm run build # build installers for the current platform
npm run preview # open the UI in a normal browser with sample data (http://localhost:5173)
cargo test --workspaceTry the scanner without the UI:
cargo run --release -p scan-core --example bench -- ~/Downloadsnode scripts/bump-version.mjs 0.2.0- Commit, then tag and push:
git tag v0.2.0 && git push origin main v0.2.0 - The Release workflow builds all installers on GitHub Actions, attaches them to a new GitHub release and publishes it when every platform succeeds.
Code signing is optional. To sign and notarize the macOS app, follow docs/macos-signing.md.
Update packages are signed with the updater key (repository secrets TAURI_SIGNING_PRIVATE_KEY and
TAURI_SIGNING_PRIVATE_KEY_PASSWORD); its public half is plugins.updater.pubkey in src-tauri/tauri.conf.json.
The app reads latest.json from the newest GitHub release. Never replace the key: installed copies only accept
updates signed with it.
Found a bug or have an idea? Open an issue: there is a short form for bug reports and one for feature requests. Pull requests are welcome too.