Mac storage basics · Caches, logs and temporary files
Slack, Teams or Zoom are using gigabytes — what can I clear?
Short answer: Use each app's own Clear cache option, and move or delete old local recordings (Zoom keeps them in the folder set in its Recording settings). Don't delete whole app folders.
These apps store caches of messages, images and files, and some save recordings locally:
- Slack, Teams, Discord — use the app's own Clear cache option where it has one (often under Help or Troubleshooting), which keeps your account signed in. Otherwise quit the app and clear only its cache folder.
- Zoom — local recordings go to a folder you set in Zoom's Recording settings; move or delete old recordings there.
Don't delete the whole app folder in Application Support — that can sign you out and remove local settings.
Storage Studio's What's Using Space recognises these apps' data and labels it, so you can see which one is responsible.