How to Free Up Space on Your Mac
Photo by Notbook Italia on Unsplash
Tutorials Mar 30, 2026

How to Free Up Space on Your Mac

Step-by-step guide to reclaiming storage on your Mac using built-in tools and Space Dust Scanner.

tasta.space

Step 1: Check What is Using Space

Open System Settings > General > Storage. This gives you a high-level breakdown of what is consuming your disk. Categories include Applications, Documents, System Data, and more.

Step 2: Empty the Trash

Right-click the Trash icon in your Dock and select "Empty Trash." You would be surprised how much space forgotten files in the Trash can consume.

Step 3: Clear Downloads

Open Finder, go to Downloads, sort by size, and delete files you no longer need. Installer DMGs and ZIP files are common space wasters.

Step 4: Find Large Files

In Finder, use File > Find (Cmd+F), change "Kind" to "Other > File Size", set "is greater than" to 500 MB. This reveals large files you may have forgotten about.

Step 5: Use Space Dust Scanner (Free)

For a more thorough analysis, download Space Dust Scanner - it is completely free with no ads or tracking. Scanner checks:

  • Cache files from 100+ applications
  • Large files (100 MB+) across your home directory
  • Orphaned app data left behind by deleted apps
  • Developer build artifacts (node_modules, DerivedData, etc.)
  • Startup items running at login

Scanner shows you exactly what is taking space without deleting anything. It is read-only and safe to run.

Step 6: Clean What You Find

Based on what Scanner reveals, you can manually delete files through Finder, or use Space Dust Cleaner for one-click cleanup with a 24-hour undo safety net.

Step 7: Prevent Future Buildup

  • Empty Trash regularly
  • Delete installer files after using them
  • Clear browser caches monthly
  • Remove apps you no longer use (including their leftover data)
  • Run Space Dust Scanner periodically to catch new buildup
Share X LinkedIn