Disk Forecast
Guides

Mac storage guides, in plain English.

How to see what's filling your Mac, what's safe to clear, and how to reclaim it with the tools built into macOS. Every step is something you can do yourself, for free.

How to check Mac storageFive built-in ways, plus how to find what's taking up space. How to free up space on MacThe complete checklist, from emptying the Trash to System Data. How to clear cache on MacSafari, Chrome, and Firefox first, then app and developer caches. What is System Data on Mac?What's inside it, how much is normal, and why it keeps growing. How to clear System DataThe step-by-step guide, using only Apple's own tools. Purgeable space on MacWhat it is, why Finder counts it as free, and when to clear it. Time Machine local snapshotsList and delete them with tmutil, and why they come back. Other Users & SharedOther accounts, the Shared folder, and deleted users' images. Clear cache by toolDocker, npm, pip, Teams, Xcode, and five more, one page each. Delete local AI modelsOllama, LM Studio, Hugging Face, ComfyUI, and Apple's own. What's taking up spaceSleep image, iPhone backups, Messages, cloud drives, and dev files. Best free Mac cleanerSix honest picks, and what a cleaner should and shouldn't do. Disk space analyzers for MacTreemaps, rings, and lists, the APFS gotchas, and which app to use.

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macOS 14 or later · Apple Silicon and Intel · brew install --cask coreyhaines31/tap/diskforecast