I built Atlas because every Mac cleaner I tried deleted things silently — I could never tell what was actually touched, or get any of it back afterwards. Atlas works the opposite way: scan → review the plan item by item → confirm. Every action creates a restore point and a numbered ledger entry you can undo during the retention window. It recognizes dev toolchains (Homebrew/Xcode/Node) and excludes them by default. For launch week we also shipped a free web Space Reclaim Estimator — answer 4 questions and get an estimate of reclaimable space before installing anything (methodology and sample limits are stated on-page). On our own M-series test machine: 35.3 GB reclaimable, ~85% of it from Xcode and simulator caches. Everything is MIT-licensed. Happy to answer questions about the architecture or what's actually safe to delete on a dev machine.

Atlas for Mac

Explainable recovery-first Mac cleaner + free calculator

Explainable recovery-first Mac cleaner + free calculator