Wombit

Wombit is a native Mac app that shows what's filling your disk, explains every item in plain language, and clears space safely: Trash first, with Undo and a log.

Scan the whole disk or any folder and see it as a treemap, a sunburst or a list. Click any folder to see what it is and whether it's safe to remove. Explanations come from a rules catalog with sources, and no file names or paths ever leave your Mac.

What you get:

• System Data, explained: the part Storage settings won't break down, split into named parts
• Developer folders it understands: Xcode DerivedData and simulators, Docker, node_modules, the Gradle, Cargo, npm, pip and uv caches, Ollama and LM Studio models
• A review before anything moves: every item, its size and what removing it would mean
• Trash first: Undo and Put Back work until you empty the Trash. When a tool has its own cleanup command, Wombit runs that instead of deleting its files
• Only items their owner rebuilds by itself start checked. macOS, your keychains, iCloud Drive and the Photos and Music libraries are never offered
• What Changed: a daily history of what grew, with alerts when space runs low
• An uninstaller that shows what each app left behind
• A System Monitor for CPU, memory, network and power, and a command-line tool

Pricing: the analyzer is free for good, not a trial. Pro is $4.99 once, with lifetime access on up to 3 Macs. No subscription.

Requires macOS 26 Tahoe or later, on Apple silicon and Intel Macs. Signed with a Developer ID and notarized by Apple.