The disk space blog

Practical, no-fluff guides to finding and cleaning what's eating your Mac.

The practical checklist — caches, Time Machine snapshots, old device backups, Downloads triage and the biggest-files hunt.

What DerivedData actually is, why it balloons to tens of gigabytes, and three safe ways to clear it.

One of these folders you can wipe freely; the other holds the dSYMs that symbolicate your users' crash reports. Know the difference.

Find every node_modules on your disk and clear npm, Yarn, pnpm, CocoaPods, Homebrew and Gradle caches — safely.