No upload. No cloud. 100% free.
Visual disk usage tree — see exactly which folders and files take the most space on your drive.
100% free — no Pro tier, no payment needed
Visual disk analysis — fast, private, completely free.
Browse your disk as an expandable tree. See folder sizes at a glance — sorted by size, largest first.
Instantly see which files consume the most space on your drive. Find and clean up storage hogs.
Scans thousands of files per second using parallel processing. Even large drives (1 TB+) scan quickly.
No data ever leaves your PC. Completely offline, no registration, no telemetry.
See total used and free space and how it's distributed across top-level folders. Clear overview at a glance.
Click any folder to drill down into subfolders. Double-click to open the folder in Windows Explorer.
No payment. No sign-up. No catch.
Yes — Disk Analyzer is completely free, forever. No Pro version, no payment, no sign-up required.
Very fast — the app scans in parallel and can handle even large drives (1 TB+) in seconds to a few minutes.
No — Disk Analyzer only reads and displays usage information. It never modifies or deletes any files.
Windows 10 or 11 (64-bit), .NET 8 Desktop Runtime (~50 MB, free from Microsoft), ~40 MB disk space.
Free download. No sign-up. No catch.
Windows 10 / 11 · ~40 MB · Requires .NET 8 Desktop Runtime (free)