Mac storage basics · Caches, logs and temporary files
Where are cache files stored on a Mac?
Short answer: Mostly in ~/Library/Caches (Finder: hold Option, choose Go → Library → Caches). Some apps use Application Support or Containers instead, and there's a shared /Library/Caches.
Most app caches live in your user Library at ~/Library/Caches, with one folder per app (often named like com.company.app). To open it, hold Option, click Finder's Go menu and choose Library, then open Caches. Some apps keep caches inside their own folder in ~/Library/Application Support, or inside ~/Library/Containers, instead.
There's also a shared /Library/Caches for system-wide items, and macOS keeps per-user temporary and cache areas in a hidden system folder it manages itself.
Before deleting anything there, read is it safe to delete caches.