Portable treemap disk analyzer

Space Sniffer free download for Windows PC

Track down storage-heavy folders with the classic Space Sniffer treemap view. The current official x64 build stays portable, filter-driven, and fast to scan even while you keep drilling deeper into the drive.

Download Space Sniffer View Official Features
2.1.0.21 Latest official x64 release listed on 2026-01-20
Portable No install routine, XML config, and drag-ready zip package
Treemap Live block view for folders, filters, tags, and export reports
SpaceSniffer 2.1.0.21 x64
File Edit Windows Help
Open Rescan Zoom
Tags Export
Filter: *.zip;>500mb;|:yellow
Drive C:\ scan in progress
Users 118 GB
Program Files 42 GB
Temp Archive 55 GB
VMs 18 GB
Downloads 29 GB
Media 6 GB
Games 21 GB
ISO 4 GB
Cache 12 GB
Logs 2 GB
AppData 59 GB
Roaming 7 GB
Temp 3 GB
VS 8 GB
Packages 12 GB
Local 32 GB
Chrome 5 GB
GPUCache 2 GB
NPM 4 GB
NuGet 9 GB
Packages 14 GB
Cache 2 GB
Temp 1 GB
npm 2 GB
Logs 1 GB
Zoomed treemap branch
C:\ 512 GB | Used 401 GB | Free 111 GB Views: 3 | Tags: red yellow green blue
The stacked treemap panes mirror the official Space Sniffer visual style: a top strip, warm storage blocks, and blue highlights for smaller focused branches.