Disk space for Windows
Where your space went.
WinSpace reads your whole drive and names every byte, Windows' own included. It shows what can go and how it knows, and whatever you clear goes to the Recycle Bin, with Undo.
Free · Windows 10 and 11 · no account
- Safe to clearCaches apps make again31.1 GB
- Project build filesRust output, node_modules19.9 GB
- Worth a lookBig files of yours26.0 GB
- Windows' ownHibernation, restore points46.7 GB
- Your filesEverything else you keep293.5 GB
- FreeRoom to grow210.8 GB
Every byte accounted for
What does it look like?
Look around before you install it.
Every number here is made up.
Overview 1 of 4
The drive by kind, what is ready to clean, and when it fills up.
Explore 2 of 4
A map of the drive you walk into, a folder at a time.
Clean up 3 of 4
Each item and how WinSpace knows. Nothing moves until you review it.
Changes 4 of 4
What grew since your last scan, and what you cleaned.
Swipe for the other pages. Every number is made up, and it is all much sharper on a PC.
What can go, and how does it know?
Recognised by proof, never by a name.
A folder called cache proves nothing. WinSpace offers a folder only with proof that its app makes it again: the app's own cache folder, a cache tag it wrote, a lockfile beside it.
Offered, with its proof
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21.9 GB
npm cache
C:\
Users\ dev\ AppData\ Local\ npm-cache npm's own cache folder
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5.1 GB
Rust build output
C:\
Users\ dev\ Documents\ Code\ atlas\ target Cargo's cache tag
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2.2 GB
node_modules
C:\
Users\ dev\ Documents\ Code\ web\ dash\ node_modules package.json and a lockfile beside it
Never offered, and why
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Windows Installer cache
C:\
Windows\ Installer Uninstall and repair need it.
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Your global npm tools
C:\
Users\ dev\ AppData\ Roaming\ npm\ node_modules A node_modules folder with no lockfile beside it: no project made it.
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A project's history
C:\
Users\ dev\ Documents\ Code\ atlas\ .git No rule ever offers a .git folder, whatever its size.
Is it safe?
Nothing is deleted without asking you.
What you clear goes to the Recycle Bin, and you see every item before it moves.
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You review it
Nothing moves until you press Move to Recycle Bin. Big files of yours are never ticked for you, and Windows' own can't be ticked at all.
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It always fits the bin
Windows deletes anything bigger than the Recycle Bin for good, without a word. WinSpace never hands it one: it moves the parts that fit and asks you about the rest.
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Undo puts it back
At once, or later from Changes while it is still in the bin. The space returns when the bin is emptied: Empty these now does that for just those items, after asking.
Is that really every byte?
It reads the drive's own list of files.
A full scan reads the list NTFS keeps of every file on the drive, in one pass, instead of opening folders one by one. It sees what Windows keeps to itself, counts a file with two names once, and adds up to NTFS's own count of used space.
Full scans need an administrator account, and its OK once at the first scan. Without them, a basic scan shows what it could not read as a block of its own.
2.5 million files in about 8 seconds.
What does it look at?
Names, sizes and dates.
It never reads what is in your files, apart from a cache tag's first line. All it sends is an update check and anonymous counts you can switch off, never anything about your files.
Get WinSpace.
Free, for Windows 10 and 11. Installs for you alone, no admin. It runs only while its window is open: no tray icon, nothing that starts with Windows.
Windows may say “Windows protected your PC”, because WinSpace is new and has no paid certificate yet. Click More info, then Run anyway.