A fast, beautiful, and private local disk usage analyzer for Windows, macOS, and Linux.
Effortlessly visualize what is taking up space on your hard drive and clean it up safely.
Have you ever wondered "Why is my hard drive full?" or spent hours digging through nested folders trying to find massive files?
Scandisk is a modern desktop utility designed to solve that problem instantly:
- Instant Visual Breakdown: See exactly which folders and file types consume the most gigabytes using an interactive, color-coded storage map (Treemap) and charts.
- Lightning Fast: Powered by a native multithreaded Rust engine, Scandisk scans hundreds of thousands of files across your drive in seconds without freezing your computer.
- 100% Private: All scanning and calculations happen locally in memory on your PC. No files, filenames, or disk telemetry are ever uploaded anywhere.
- Safe Cleanup: Discover space-hogging files and move them to your system Recycle Bin / Trash with one click. Never deletes files permanently without confirmation.
- Disk Overview: View total capacity, used space, free space, and usage percentage for any drive (e.g.,
C:\,F:\) or folder. - Live Metrics: Real-time counter of total folder size, file count, and folder count.
- Represents files and directories as proportional rectangles—the bigger the box, the more disk space it consumes.
- Drill-Down Navigation: Click on any folder rectangle to instantly dive inside that directory and recalculate the space distribution.
- Breadcrumbs: Seamlessly navigate back up through the folder hierarchy.
- Interactive donut chart categorizing storage across extensions (Videos, Documents, Archives, Disk Images, etc.).
- Click to Filter: Click any slice in the chart to immediately view all files belonging to that category.
- Displays immediate subdirectories with item counts and disk size.
- Direct quick-actions to Scan Folder (re-scan into that folder) or Open in OS (opens native Windows File Explorer).
- Identifies the top largest individual files across your scanned drive.
- Easily sort, reveal their path in File Explorer, or safely send them to the Recycle Bin.
- Instantly crawl thousands of files in your selected directory to find files matching any keyword or extension.
- Automatically highlights large temporary files, logs, and caches (
.tmp,.log,.bak,.iso,.dmg). - Safe deletion via your operating system's Recycle Bin / Trash mechanism.
- Fast, dedicated Light and Dark theme switching.
- Persistent local preferences without bloated configurations.
- Quick guided startup tour highlighting core capabilities (Deep Scan, Visual Dashboard, Smart Cleanup).
- Includes a Skip Tour option and remembers user choices across sessions.
- Convenient top-mounted horizontal scrollbar on large folder tables, enabling easy horizontal scrolling without needing to scroll down to the bottom of long lists.
Zero setup required. No command line, Node.js, or Rust needed. Simply download the installer for your computer:
👉 Download the Latest Release (v0.2.8)
- Download
scandisk_0.2.8_x64-setup.exe(or.msi). - Double-click the installer and complete the setup.
- Open scandisk from your Start Menu or Desktop shortcut.
Important
Windows Security Notice
Since scandisk isn't signed with an expensive Microsoft certificate, Windows SmartScreen may show a "Windows protected your PC" warning.
To run scandisk, follow these steps:
- Click "More info" on the SmartScreen popup.
- Click "Run anyway" to start the installer.
- Download
scandisk_0.2.8_aarch64.dmg(for Apple Silicon M1/M2/M3/M4/M5). - Open the downloaded
.dmgand drag the scandisk icon into your Applications folder. - Launch scandisk from Launchpad or Spotlight.
Important
macOS Security Notice
Since scandisk isn't signed with an Apple Developer certificate, macOS may show a "damaged and can't be opened" warning.
To fix this, open Terminal and run:
sudo xattr -dr com.apple.quarantine /Applications/scandisk.app- Download
scandisk_0.2.8_amd64.AppImageorscandisk_0.2.8_amd64.deb. - For AppImage: Make executable (
chmod +x scandisk*.AppImage) and double-click to run. - For Debian/Ubuntu: Install with
sudo dpkg -i scandisk_0.2.8_amd64.deb.
- Select a Disk or Folder: Click the "Scan Folder" or choose any drive/folder to start.
- Watch the Scan: The live counter shows files and folders as they are processed in real time.
- Explore Visually: Click any folder tile on the Treemap to drill in, or switch tabs on the left sidebar to inspect Folders, Largest Files, and File Types.
- Free Up Space: Head to the Cleanup tab to safely clean up unnecessary large files into the Recycle Bin.
Your data stays on your device.
Scandisk does not collect analytics, track usage, or upload any file paths, names, or disk information to any remote server or cloud service.
This project is licensed under the MIT License.
