Disk Janitor

Clean your Mac
without losing your logins.

A tiny Mac app that finds the big files on your disk and asks AI to explain each one in plain English. Trash the cached junk, keep your logins and settings — chat with AI about anything you're unsure of.

Download for Macv0.3.12View on GitHub
Universal binary · macOS 14 (Sonoma)+ · Released May 4, 2026 · Bring your own Anthropic API key

Plain-English summaries

Every big folder gets one sentence telling you what it actually is, written for someone who's never heard the word 'cache'.

Login is always separated

Spotify's login folder shows up as its own row, separate from its 7 GB of cached audio. Trash one, keep the other.

Ask AI about anything

Click 'Ask AI' on any item to open a floating chat window. Ask 'will this sign me out?' and get a direct answer.

Find duplicates

SHA-256 content hash across Documents/Downloads/Desktop/Movies. Catches duplicates regardless of filename.

One-click safe cleanup

'Select safe items' picks only the rows the AI is fully confident about. Move to Trash. Empty Trash. Done.

Bring your own AI key

Your Anthropic API key lives only in macOS Keychain. Never sent anywhere except api.anthropic.com.


Open source. MIT-licensed. Read the code, file an issue, or see all releases.

Signed and notarized by Apple — opens normally, no Gatekeeper warnings.