TidyMacUse df -h / for free space, du -sh ~/Library/* | sort -rh | head for the biggest Library folders, du -sh ~/.[!.]* | sort -rh | head for hidden folders, diskutil apfs list for how macOS splits the disk, and tmutil listlocalsnapshots / for Time Machine snapshots.
- df -h / to see free space.
- du -sh ~/* | sort -rh | head to find your biggest folders.
- du -sh ~/Library/* | sort -rh | head for hidden Library data.
- du -sh ~/.[!.]* | sort -rh | head for dot-folders.
- diskutil apfs list for macOS versus your data.
- tmutil listlocalsnapshots / for Time Machine snapshots.
Free space
df -h /"Avail" is what's free right now, without purgeable space. Why that differs from Finder
Your biggest folders
du -sh ~/* 2>/dev/null | sort -rh | head -15Hidden Library data (most of System Data)
du -sh ~/Library/* 2>/dev/null | sort -rh | head -15
du -sh ~/Library/Application\ Support/* 2>/dev/null | sort -rh | head -15Without Full Disk Access for Terminal, some folders show "Operation not permitted". Grant it in System Settings › Privacy & Security › Full Disk Access.
Hidden dot-folders
du -sh ~/.[!.]* 2>/dev/null | sort -rh | head -15
Let TidyMac do this for you
Scan free, see every part of your storage explained, and clean only what’s safe. Everything goes to the Trash first.
macOS versus your data
diskutil apfs listLook at "Capacity Consumed" for each volume: System, Preboot, Recovery and VM are macOS; Data is yours.
Time Machine local snapshots
tmutil listlocalsnapshots /Paste your output, get an explanation
Run the Library command above and paste the result into our free System Data explainer. It runs in your browser and tells you what each folder is and whether it's safe to remove.