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SpaceSharp is a free, open-source disk space analyzer for Windows 10 and 11, inspired by SpaceMonger.
It scans an entire drive or a selected folder and draws it as an interactive, zoomable treemap: every folder is a frame, every file a box sized by the space it uses, so the big things stand out at a glance. NTFS drives are read straight from the file table, so a million files take seconds.
Features include a filter drawer with file types, size, age and presets, a panel showing space by type, places that are safe to clear and when files last changed, saved scans with a view of what changed since last time, fifteen palettes and adjustable shading with a live preview, dark and light themes with five looks each, size-on-disk measurement, hard-link detection, CSV export and a command line.
Files can be opened in Explorer or sent to the Recycle Bin from the map. Portable and installable builds for 64-bit and 32-bit Windows. MIT License, actively developed on GitHub.
Features
- Fast parallel drive and folder scanning
- NTFS file table scan: a million files in seconds
- Interactive zoomable treemap visualization
- Adjustable cushion shading and light direction with a live preview
- Filter drawer with file types, size, age and presets
- Plain-word filters such as "videos over 500MB older than 1 year"
- Largest files and folders overview
- Storage usage breakdown by file type
- Safe-to-clear suggestions with one-click Recycle
- Histogram of when files were last changed
- Inspect window with share, composition and age for any item
- Saved scans with a view of what changed since last time
- Actual size-on-disk measurement
- Hard-link detection to avoid double counting
- Color by top-level folder, depth, file type or change
- Fifteen color palettes, split by dark and light theme
- Color-blind-safe palettes
- Custom palettes as JSON files
- Five dark and five light looks for the app itself
- Light and dark themes with Windows theme integration
- Open files and folders directly in Explorer
- Safe deletion through the Windows Recycle Bin
- CSV export of largest files, folders, matches or changes
- Command line scanning and Explorer context menu entry
- Portable and installer versions
- 64-bit and 32-bit builds for Windows 10 and 11
- Automatic updates with release notes in the app
- Long-path support
- High-DPI support
- No telemetry, no account
- Free and open source under the MIT License
Project Samples
