The short answer
Yes. Rebuilt or re-downloaded automatically when needed.
What is it?
Compiled JavaScript that Electron and Chromium-based apps save in a Code Cache folder so they start faster, next to GPUCache and Local Storage in the app’s Application Support folder.
What happens if you delete it?
Recreated at the next launch; the app compiles its code again and starts a little slower once.
How to remove it properly
Quit the app, then move its Code Cache folder in ~/Library/Application Support/<App> to the Trash.
Quit the app that uses it, then move it to the Trash. Empty the Trash when you’re sure.
Before you delete it
Delete only the Code Cache folder: Local Storage and IndexedDB next to it can hold app data and logins.
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 Code Cache folders on Mac?
Yes. Rebuilt or re-downloaded automatically when needed. Recreated at the next launch; the app compiles its code again and starts a little slower once.
Will App compiled code caches (Electron apps) come back after I delete it?
Yes. Recreated at the next launch; the app compiles its code again and starts a little slower once.
How do I remove App compiled code caches (Electron apps) properly?
Quit the app, then move its Code Cache folder in ~/Library/Application Support/<App> to the Trash.