The short answer
Yes. Rebuilt or re-downloaded automatically when needed.
What is it?
Apps built on Electron or Chromium, such as Notion, Figma, Discord, Postman or VS Code, keep a web cache folder named Cache in their Application Support folder, next to Code Cache and GPUCache. Each usually takes tens to hundreds of MB.
Web cache of apps built on Chromium (Notion, Figma, Teams, Discord, Postman…). Rebuilt on next launch; quit the app first.
What happens if you delete it?
Rebuilt the next time the app runs; it may load content slightly slower once. Documents, settings and logins are stored elsewhere.
How to remove it properly
Quit the app first, then move its ~/Library/Application Support/<App>/Cache folder to the Trash. Deleting it while the app is open can make the app misbehave until it restarts.
Quit the app that uses it, then move it to the Trash. Empty the Trash when you’re sure.
How MoreRoom helps
MoreRoom recognises this item, shows its real size and when it was last used, and labels it “Safe to remove”. In the free version you can move it to the Trash in one click, with Undo; Pro collects every safe item at once.
Frequently asked questions
Is it safe to delete Cache folders of Electron apps on Mac?
Yes. Rebuilt or re-downloaded automatically when needed. Rebuilt the next time the app runs; it may load content slightly slower once. Documents, settings and logins are stored elsewhere.
Will App web caches (Electron apps) come back after I delete it?
Yes. Rebuilt the next time the app runs; it may load content slightly slower once. Documents, settings and logins are stored elsewhere.
How do I remove App web caches (Electron apps) properly?
Quit the app first, then move its ~/Library/Application Support/<App>/Cache folder to the Trash. Deleting it while the app is open can make the app misbehave until it restarts.