Area is truth
Every pixel of island is a byte of disk
A 215 GB folder is drawn 23× larger than a 9 GB file — exactly, not artistically. If an island looks big, it is big.
Disk cleanup, charted · Windows 10 / 11
See exactly where your disk space went. Then get it back.
DiskQuest charts your drive as a sonar map: folders become islands drawn exactly to size, free space is open water, and reclaimable junk glows amber. Cleanup stops being a chore and becomes an expedition.
Free scan, no account · Review-first cleanup · Files move to Recycle Bin — never hard-deleted
Users 215 GB · 45%
Program Files 96 GB
Windows 75 GB · restricted
OPEN WATER · 451 GB FREE
2.8M+
files charted in one sweep
1 px² = 1 unit
area-true — no lying sprites
13
junk categories, review-first
$9.99
lifetime · not a subscription
01 · Why a map
Storage tools show you a list. Lists lie by omission.
A sorted folder list hides the one thing you actually want to know: proportion. DiskQuest's chart is a real squarified treemap wearing a deep-sea skin — so the picture is the data, not a decoration on top of it.
Free space is visible
Half-empty drives look half empty
Free space isn't a number in a corner — it's open water you can see. When the water grows, you feel the win.
Junk is anchored
Salvage beacons sit where junk lives
Caches, stale downloads and installer leftovers appear as amber beacons on their real paths — not rows in an abstract report.
02 · How it works
Sweep. Dive. Salvage.
Three moves from "my drive is full" to gigabytes back — with you reviewing every byte before it goes.
01 / SWEEP
Chart the drive in seconds
Turbo Scan reads the NTFS Master File Table directly — millions of files charted in one sonar sweep, not a half-hour crawl. Re-charts use the change journal, so rescans are near-instant.
02 / DIVE
Click an island, see inside
Every folder opens into its own archipelago — instantly, from data the scan already gathered. Deeper waters, rougher coastlines: you always know how far down you are.
03 / SALVAGE
Review the haul, reclaim the space
Amber beacons mark 13 categories of reclaimable junk. Review each haul, send it to the Recycle Bin, and watch open water grow on the chart.
03 · Features
A depth sounder for your drive, not another list view.
Everything below ships in the free version unless marked — and nothing, on any tier, deletes a file without your review.
Area-true sonar chart
A real squarified treemap under a sonar skin. Island area is exactly proportional to bytes — position is hierarchy, contours are depth.
Salvage beacons
Caches, stale downloads, installer leftovers, screenshot clutter, forgotten game installs — 13 categories, each anchored to the real path it came from.
Turbo Scan (MFT)
Reads the drive's Master File Table instead of walking folders — 2.8M files in one sweep on a real system drive. Quick rescans via the NTFS change journal.
Lifetime tier
Instant dives
The scan keeps a pruned folder tree, so diving into a 200 GB island renders its interior in under a second — no re-crawl, no spinner.
Safe by design
Review-first flows, Recycle Bin only — never hard-delete. System roots like C:\Windows are charted as restricted islands you can't accidentally torch.
Cleanup that feels like loot
Quests guide you to safe wins, reclaimed gigabytes count as victories, and the chart visibly clears. It's the disk tool you'll actually want to open.
04 · Pricing
Pay once. Or don't pay at all.
No subscription, no account, no upsell nags mid-cleanup. The free version is a real tool, and Lifetime is one purchase.
Free
$0
forever
- Unlimited scans — quick, folder, and full drive
- The full sonar chart with dives and salvage beacons
- All 13 junk categories with review-first flows
- Monthly cleanup allowance
DiskQuest Lifetime
$9.99
once · yours forever · launch price
- Everything in Free
- Turbo Scan — MFT read, millions of files in seconds
- Quick rescan — near-instant re-charts via the change journal
- Unlimited cleanup — no monthly cap
One-time payment. No subscription. No account required.
05 · FAQ
Questions, answered straight.
Is it safe? I've been burned by "cleaners" before.
That fear is the reason DiskQuest works the way it does. Nothing is ever deleted without your review, and everything you approve goes to the Recycle Bin — never a hard delete — so any decision is reversible. System roots like C:\Windows and C:\Program Files are charted as restricted islands the cleanup flows can't touch at all.
Does it delete anything automatically?
No. DiskQuest finds and categorizes; you decide. Every salvage flow shows you exactly which files are in the haul before anything moves, and "clean" always means "move to Recycle Bin".
What exactly is Turbo Scan?
Instead of walking every folder like most tools, Turbo Scan reads the NTFS Master File Table — the drive's own index — directly. That's how a system drive with millions of files charts in seconds. After the first sweep, quick rescans read the NTFS change journal, so keeping the chart fresh takes almost no time at all.
Is the free version actually useful, or is it a demo?
It's a real tool: unlimited scans, the full sonar chart with dives, and all 13 junk categories with review flows. The free tier has a monthly cleanup allowance; Lifetime removes the cap and adds Turbo Scan.
Which platforms does it run on?
Windows 10 and 11 today. A macOS version is in development.
Is $9.99 really one-time — no subscription?
Yes. DiskQuest Lifetime is a single purchase at the launch price of $9.99. No renewal, no account requirement, no "premium tier" above it.
Ready when you are
Chart your drive. The first sweep is free.
Download, scan, and see your disk the way a cartographer would — in about a minute.
Windows 10 / 11 · Free scan, no account · Recycle Bin, never hard-delete