Developer
/Library/Developer is a shared macOS folder typically used by Apple developer tools such as Xcode for SDKs, simulators, and related resources.
What is Developer?
/Library/Developer is a system-level folder commonly associated with Apple development tools on macOS. It may store shared components used by Xcode, developer runtimes, simulator support files, and other resources needed for building, testing, or debugging apps. People usually encounter it when managing disk usage on Macs that have current or past developer tools installed.
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Safety overview
Status: Use with caution
This folder is often legitimate and may be required by Xcode, simulator runtimes, command line developer tools, or other Apple development components. Removing contents manually can break builds, device support, simulator functionality, or installed developer tools. The exact impact depends on what is inside on your Mac.
Recommendation: Keep this folder if you use Xcode, iOS simulators, or Apple developer tools. If you no longer do development work and need space, review its contents carefully and remove developer components through Xcode or official Apple tool management methods instead of deleting shared files blindly.
File path
/Library/Developer
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