Xcode & Simulator Artifacts

What Gets Scanned

Simulators

• Every installed iOS, iPadOS, watchOS, and tvOS Simulator device
• Shows device name, iOS version, size, and last-used date for each one
• Flags simulators whose runtime has since been removed from Xcode — safe candidates for removal

Test Simulator Clones

• Detects the copy-on-write clones Xcode creates automatically during UI testing
• Clones share underlying storage with their parent simulator via APFS copy-on-write, so deleting a single clone frees very little space
• Grouped separately from regular simulators, with a note that deleting the full set frees close to the group total shown

Derived Data

• Xcode's build intermediates and index caches — one of the fastest-growing folders on a developer's Mac
• Safe to remove; Xcode rebuilds it automatically on the next build

Archives

• .xcarchive bundles created by Xcode's Product → Archive, used for App Store submissions and ad-hoc builds
• Often forgotten on disk long after a release has shipped

Tool Caches

• Caches left behind by Xcode's command-line tools, Swift Package Manager, and related developer tooling

Bulk Cleanup Tools

• Select Outdated: one click selects every simulator whose runtime is no longer installed
• Rescan: re-scans Xcode-related storage after freeing space or changing installed simulator runtimes
• Per-item and per-group sizes throughout, so you know exactly what you're about to remove before you remove it