'Your startup disk is almost full' and you have no idea what is using it. SpaceHog points at any folder (or your whole home folder) and lists the biggest folders and the biggest single files inside, so you can see exactly where the space went and clean up with confidence. Read-only: it shows, it never deletes.
Run in browser - no install
Click Choose a folder, point it at any folder on your computer (your home folder, Documents, an external drive),
and SpaceHog walks the whole tree right here in your browser to find what is actually eating your disk space.
You get the biggest subfolders and the biggest single files, ranked. Nothing is uploaded - it all happens on your
machine, and SpaceHog only reads sizes, it never touches or deletes a thing.
No folder chosen yet
✓
This folder is empty - nothing to measure.
Biggest subfolders
Biggest single files
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Your browser can't open folders directly (Safari and Firefox don't support this yet). Use
Chrome, Edge, Brave or Arc for the in-browser version, or grab the download above - the
native app works everywhere.
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SpaceHog is read-only. It measures sizes and ranks the hogs, but never deletes, moves or changes any file.
Big folders take a moment to walk - the count keeps ticking so you know it is working.