v0.5.0Disk space app for Windows 10 and 11
Your drive is full again and you don’t know why. Tidemark shows what’s using the space, what’s been growing and which app it belongs to, then helps you get it back safely.
coming soonto the Microsoft Store
Pro $9.99free to use · pro is one payment · no account · no telemetry
A cushioned treemap and a size-sorted list side by side, with the largest files, file types and old files a click away. Fast scan reads a whole NTFS drive in seconds.
Free, no time limit
Scan, explore and clean without paying.
Pro is $9.99 once
Usually $19.99. No subscription, up to 3 PCs.
Recycle Bin, every time
Nothing is deleted permanently.
No account, no telemetry
Your scans never leave your PC.
01Why Tidemark
Most analyzers show what’s big right now. Tidemark also remembers, attributes and explains.
1.1Memory
Every scan is a snapshot. Compare two and Tidemark pinpoints the folders that grew or shrank, then forecasts when the drive will be full. A big folder you meant to keep is not the problem. The one that doubled since Tuesday is.
1.2Attribution
Apps scatter files across Program Files, AppData, ProgramData and hidden folders. Tidemark adds them up per app, from browsers and games to Docker, WSL, VS Code, Cursor, Claude, Codex and Ollama, and finds the folders uninstalled apps left behind.
1.3Explanation
Every item says what it is, how risky it is to remove and the official way to reclaim it. Clean sorts everything into safe, review first and handle with care, and only the safe items are ticked for you.
02A closer look
Game libraries, AI models, developer projects and a Windows install that keeps growing. Tidemark knows about all of them.
2.1
Which AI apps and local model servers are running, how much memory they hold, which ports they listen on, and a warning when one is open to your network.
2.2
The hibernation file, page file, WinSxS, update caches, restore points and virtual disks, each explained, and cleaned only with Microsoft’s own tools.
2.3
Identical files by content, with cloud-only files skipped. Keep one shared copy of a model used by Ollama, LM Studio, Hugging Face and ComfyUI, and every tool keeps working.
03Everything in Tidemark
04Safe by design
A cleaner you can’t trust is worse than none. These rules are built into Tidemark, not left to a setting.
4.1
You review everything first
Tidemark shows exactly what it will remove before anything moves. Nothing is deleted in the background.
4.2
The Recycle Bin, every time
Removals go to the Windows Recycle Bin, and Windows warns before anything would be deleted permanently.
4.3
Recent files are left alone
Limits never touch a file changed in the last 24 hours.
4.4
Microsoft’s tools for Windows’ own space
System items are never deleted directly. DISM, powercfg, Storage Sense and diskpart run in a visible window after a Windows permission prompt.
4.5
Apps uninstall the way they were built to
Tidemark only runs the uninstaller Windows has registered for an app, and offers leftovers once the app is gone.
4.6
Shared AI models keep working
Before sharing one copy of a model, Tidemark checks both files again, links them and only then removes the extra copy.
05Pricing
Everything you need to find and clear space is free, with no trial timer. Pro adds history, forecasts, limits, watches, fast scan and the power tools.
Tidemark Pro
06Compare
Based on each tool’s own published feature list. “Not listed” means the vendor doesn’t advertise it.
| Feature | Tidemark | WizTree | WinDirStat | TreeSize | Windows Storage settings |
|---|---|---|---|---|---|
| Space per app | Yes | Not listed | Not listed | Not listed | Partly |
| What grew between scans | Yes | Not listed | Partly | Partly | No |
| When the drive will be full | Yes | Not listed | Not listed | Not listed | No |
| Clean sorted by risk | Yes | Not listed | Partly | Not listed | Partly |
| System space explained | Yes | Not confirmed | Partly | Not listed | Partly |
| AI tools and models | Yes | Not listed | Not listed | Not listed | No |
07Private by design
No account, no ads and no telemetry. The only time Tidemark goes online is to check a Pro license key.
noteRunning Ollama, LM Studio or ComfyUI? Models are often the biggest thing on the drive.
Read the guide08Questions
It shows where your disk space went, what has been growing and how to get space back safely. It scans your drives, adds up space per app, explains Windows’ own system space, remembers past scans so you can see what grew, and clears what is safe to clear through the Recycle Bin.
Those show you what is big right now. Tidemark also remembers past scans, so it can say which folders grew and when a drive will fill, adds space up per app, explains Windows’ system space and cleans it with Microsoft’s tools. The comparison pages go through it tool by tool.
Tidemark is built so that it does not. You review everything before it moves, removals go to the Recycle Bin, items that cannot be recreated are explained instead of offered, and Windows’ own space is cleaned only with Microsoft’s tools.
Overview, Clean, Explore, Apps, running uninstallers, AI tools, System, finding duplicates, daily snapshots and the Collector are free with no time limit. Pro adds snapshot comparisons and forecasts, Limits, Watches, sharing duplicate AI models, Developer cleanup, Fast scan, clearing what uninstalled apps leave behind and stopping AI tools.
No. Tidemark Pro is one payment, and it includes the updates that come through the Microsoft Store.
No. File names, sizes and history stay on your PC. There is no account, no telemetry and no ads.
→Get Tidemark
Free to use, with no time limit. Tidemark Pro is $9.99 once (usually $19.99), for up to 3 PCs.
coming soonto the Microsoft Store
See pricingWindows 10 (version 2004, build 19041) or later and Windows 11, on x64 PCs.
