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What's taking space on your Mac? Free check

One Terminal command measures the folders that usually fill a Mac: caches, logs, Xcode and simulator data, package manager caches, AI models and more. Paste what it prints and this page tells you what each one is and whether it is safe to clear.

1Copy this into Terminal

It runs du, which only measures folder sizes. It never deletes or changes anything, needs no password and sends nothing over the network. Folders you don't have are skipped.

(cd ~ && du -sk Library/Caches Library/Caches/Homebrew Library/Caches/Yarn Library/Caches/pip Library/Caches/CocoaPods Library/Caches/ms-playwright Library/Caches/Google/Chrome Library/Caches/Firefox Library/Caches/JetBrains Library/Caches/com.spotify.client Library/Logs Library/Logs/DiagnosticReports Library/Developer/Xcode/DerivedData 'Library/Developer/Xcode/iOS DeviceSupport' Library/Developer/Xcode/Archives Library/Developer/Xcode/UserData/Previews Library/Developer/CoreSimulator/Devices Library/Developer/CoreSimulator/Caches 'Library/Application Support/MobileSync/Backup' 'Library/iTunes/iPhone Software Updates' 'Library/Application Support/Slack/Cache' 'Library/Application Support/discord/Cache' 'Library/Application Support/Code' 'Library/Application Support/Cursor' 'Library/Application Support/Adobe/Common/Media Cache Files' 'Library/Saved Application State' Library/pnpm/store Library/Android/sdk Library/Containers/com.docker.docker/Data/vms/0/data/Docker.raw .npm/_cacache .cargo/registry .rustup/toolchains .gradle/caches .m2/repository go/pkg/mod .bun/install/cache .cache/uv .cache/huggingface .ollama/models .lmstudio/models .nvm/versions/node .pyenv/versions .android/avd .vscode/extensions miniconda3/pkgs anaconda3/pkgs .claude .codex .Trash 2>/dev/null)

Open Terminal (Applications, Utilities), paste, press Return.

It takes a few seconds. If macOS asks whether Terminal may access a folder, you can say no: that folder is just left out.

2Paste what it printed

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Want to know more about a folder first? Every one has a guide in the storage guides.