MacSpace

MacSpace is a free and open-source macOS utility that explains what fills the System Data category and frees the parts that are safe to delete. It breaks System Data down into caches, logs, reports, system assets, app data and document version history, and can also clear app caches, old diagnostic reports, Time Machine local snapshots, leftover macOS updates and local copies of cloud files.

Its Siri & Apple Intelligence module switches Apple Intelligence off and deletes the models macOS keeps on disk (around 12 GB), with similar reversible switches for Siri, Spatial Photos and Call transcription. A Debloat module adds twelve switches to disable analytics, personalized ads, Spotlight internet results and other background data collection.

MacSpace runs from the menu bar, can clean automatically, keeps a history of past cleanups and collects no telemetry. It requires macOS 27 or later on Apple Silicon.