Safe to Delete

Xcode iOS Simulators Folder (~/Library/Developer/CoreSimulator/Devices)

Space: 10 GB – 50 GB+ developer macOS
Quick Answer: CoreSimulator stores virtual disk images and cached app data for iOS, watchOS, and tvOS simulators. Deleting old devices is safe.

Bottom Line: It is 100% safe to delete old Xcode Simulators. Older iOS runtime disk images and test app installations can accumulate up to 50 GB+ of SSD storage.

What is the CoreSimulator Devices Folder?

Located at ~/Library/Developer/CoreSimulator/Devices on macOS, Xcode creates a separate UUID folder for each iOS, iPadOS, watchOS, and tvOS simulator version created during development.

Can You Delete Xcode Simulators?

✅ Yes, safe to delete.

  • Re-created easily: You can recreate default simulators instantly in Xcode under Settings > Components or via xcrun simctl.

How to Safely Clean Up Xcode Simulators

Delete Unavailable/Old Simulators

xcrun simctl erase all
xcrun simctl delete unavailable

Discussion

Loading authentication...

Related in developer

The AI Engineer's Model Disk Cleanup Guide: Hugging Face, Ollama & PyTorch

The ultimate 1,200-word field guide for AI developers and local LLM hobbyists to reclaim 200GB+ from Ollama, Hugging Face, PyTorch, and vLLM model weights.

Safe to Delete

Android Studio System Index Cache (AndroidStudio Cache)

Android Studio caches Gradle project indexes, VFS caches, and compiler artifacts. Invalidate and clear is safe.

Safe to Delete

Ansible Automation Temp & Fact Cache (~/.ansible/tmp)

Ansible stores temporary playbook execution modules and target host fact JSON caches in ~/.ansible/tmp. Clearing Ansible tmp is safe.

Safe to Delete
Back to all files