See what's filling your drive. Clear it safely.
Underbrush scans your drive, says what each big folder is in plain words, and clears the parts that are safe to clear. Without breaking the build, the app, or the job that's running right now.
Underbrush Disk Cleaner · Windows 10/11 · No account · Microsoft Store
A drive fills up with things nobody chose to keep
Temp folders that never get emptied. Package caches that grow forever. Old build output, emulator images, installers you needed once.
Other tools show where
WinDirStat and WizTree show which folders are big. They don't say what a folder is, or whether deleting it breaks something.
Disk Cleanup only knows Windows
Windows' own cleaner knows what's safe for Windows files. It has nothing to say about npm, NuGet, Docker, emulators or your browser's cache.
Guessing is how things break
Delete the wrong cache mid-build, or a folder a sync app still needs, and you lose an afternoon. Underbrush says what it is before anything goes.
Everything goes in a pile
Only the first pile is ticked for you.
Safe to clear
Temp folders, browser and app caches, package caches (npm, NuGet, pip, Gradle, Yarn, Cargo, Go), build output, shader caches, crash dumps, the Recycle Bin. Apps rebuild or re-download these.
Your call
Downloads, Android emulators, Docker and WSL disks, AI models, Teams and Zoom data. Shown with size and last change, never ticked for you, and set aside for a week so you can put it back.
Cloud
OneDrive and other synced folders. Made online-only, never deleted: the files stay in the cloud and download again when you open them.
Leave it
Windows, installed apps, app settings, the page and hibernation files, Windows.old. Never cleared; where there's a proper way to shrink it, Underbrush says so.
What it does
See where your space went
Scan a drive or your home folder. The Dashboard shows free space, the biggest folders, and what kinds of files fill it.
Know what it is
Space hogs are named in plain words. In temp and cache folders, Underbrush says which app made each part.
Free up in one click
Or pick item by item in Clean up. Either way you see the list and the total first.
Explore and Largest files
Walk the folder tree by size, or jump straight to the biggest single files on the drive.
History
Every scan and clean-up, with what was cleared and how much space came back.
System
How hard your computer is working across disk, memory and CPU, so you know whether space is the real problem.
The safety rules run every time
Recent and open files stay
Files written in the last 3 days, and files that are open or locked, are skipped.
Builds come first
Package caches and build output wait while MSBuild, npm, cargo, gradle and friends are running.
Your code is never touched
A git repository is never cleared, even one sitting inside a temp folder.
Cloud files are never deleted
They're made online-only instead.
You see it first
Every clear shows the list and the total before anything happens.
Your files stay on your PC
Your files, folder names and scan results never leave your computer. No account. A daily update check, crash reports and anonymous usage counts help us fix problems, never with file names or anything about you, and each can be turned off in Settings.
Get Underbrush
On its way to the Microsoft Store. Questions before then?
Ask usWindows 10 or 11 · Nothing else to install