Windows Explorer tells you a folder is “4.2 GB” and leaves you there. DiskScout reads the NTFS master file table directly, so you get a complete picture of a 2 TB drive in under a minute — every folder, every file, sorted by what actually takes up space.
Your drive is full and you don’t know why. Explorer’s size column is unreliable, it can’t sort by folder size, and opening properties on 40 folders one at a time tells you nothing about where the space actually went.
The usual advice is “delete your temp files”. That buys you 3 GB. The real space is in six folders you’ve never opened.
Flat file lists don’t reveal that one game’s shader cache is 60 GB. You need sizes rolled up per folder, sorted largest first.
The same 4 GB video copied into three download folders. Compare by content hash, not by filename — filenames lie.
A drive analyser should never need network access. If a tool asks to upload your file index, that’s a privacy problem, not a feature.
Most analysers walk the directory tree and ask the filesystem about every file individually. On a drive with 800,000 files, that’s 800,000 round trips. DiskScout reads the index the filesystem already keeps.
NTFS stores every file’s name, size, and location in a single index. We read it directly instead of walking the tree — one sequential pass instead of a million conversations with the driver.
Stage one compares size and a 64 KB head/tail fingerprint. Only survivors get fully hashed, so duplicate detection stays proportional to how many duplicates you actually have.
The scanner makes zero network requests. Your file names and folder structure stay on your machine. This is enforced by design, not by policy.
Nothing is deleted until you confirm. Deletions go to the Recycle Bin by default, with a preview list and a one-click export of what was removed.
Select C:\ or any volume. Scanning starts immediately — no configuration, no indexing wizard.
Folders are ranked by total contents. Click into the biggest one and repeat until you find the files that matter.
Delete, or move the duplicates you chose. The report shows exactly how much you got back.
One-time purchase. No subscription required, no expiry, no feature gating you’ll discover later.
Prices in USD and include applicable taxes. Payments are processed by Creem as merchant of record. Full terms: Refund Policy.
DiskScout is still being built. Send us an email and we’ll write to you exactly once, when the download is live.
Email support@diskscout.appNo. The scanner makes no network requests at all. Your file names, folder structure, and hashes stay on your computer. You can verify this yourself — run it disconnected from the network.
Windows 10 (build 1809 or later) and Windows 11, 64-bit. MFT scanning requires NTFS; FAT32 and exFAT drives fall back to a standard directory walk, which is slower.
Nothing is deleted without your explicit confirmation. The default action sends files to the Recycle Bin, and it always shows you the full list first. We recommend a backup before any bulk deletion, as we do for ourselves.
Scanning and analysis are unlimited in both — you can always see everything. The free version limits how many files you can delete or move in one session (the first 50). The paid license removes that limit and covers up to 3 PCs.
Email support@diskscout.app within 14 days of purchase and we refund it in full, no reason needed. See the Refund Policy.
Not yet. The fast path depends on the NTFS master file table, which is Windows-specific, so a Mac version would need a different implementation. Windows first.
Not yet — DiskScout is still in development (expected Q4 2026). Email support@diskscout.app and we’ll tell you the moment it’s ready. When released, installers will be signed and served from this domain.