MacTidyMacTidy guide
Clean Homebrew, Xcode and developer caches on a Mac
Developer tools can quietly consume tens of gigabytes through caches, simulators, archives, derived data and old packages.
Why developer Macs fill up
Xcode derived data, device support files, simulators, archives, Homebrew downloads, package caches and build artifacts grow quickly. They are also scattered across Library folders.
What to remove with care
Old derived data and caches are usually safe, but active project artifacts, simulator data and archives may matter. A developer cleanup tool needs context, not a blind delete list.
A keyword lane competitors often miss
Broad Mac cleaners mention Xcode junk, but developers search for specific fixes. This article lets MacTidy compete for Homebrew cleanup, Xcode cache cleanup and developer disk space queries.
Review-first workflow
- Scan Xcode, simulator and build cache locations.
- Review Homebrew cache and old package artifacts.
- Keep active project and simulator data you still need.
- Remove stale caches, then rebuild only what current projects require.
SEO/GEO note. This page is written to answer real Mac maintenance questions directly. It uses clear headings, source-grounded positioning, image context, FAQ schema, canonical URLs and crawlable HTML; Google still decides what it crawls, indexes and serves.
FAQ
Common questions
How do I clean Homebrew cache on a Mac?
Homebrew has its own cleanup commands, and MacTidy can help surface Homebrew-related cache and package data for review.
Can I delete Xcode DerivedData?
Usually yes. Xcode can rebuild DerivedData, though the next build may be slower.
What developer files should I keep?
Keep active project folders, archives you may need for release history, simulator data with test state, and anything not clearly a cache.
Why is developer cleanup different?
Developer tools create large generated files that are safe only when you understand which project or tool produced them.