Mac storage, clearly explained.
What fills your disk, what is safe to remove, and how macOS really counts space. Useful with or without dux.
Start here
macOS storage explained
What is System Data on a Mac, and can you shrink it?
Read the guide 
macOS storage explained
How macOS counts space, and why the numbers disagree.
Free up space
Practical, safe steps, from quick wins to deep cleans.
For developers
Xcode, simulators, package managers and containers.
Cloud storage
Google Drive, OneDrive, Dropbox and iCloud Drive on a Mac.
Mac fleets
Disk space reporting and cleanup for Macs managed with Intune, Jamf and friends.
Comparisons
How dux compares with other disk tools for the Mac.
Rather see it than read it?
dux shows where your space goes in seconds. Free on the Mac App Store.