The Best Free Mac Cleaner for 2026
Mac feeling slow or running out of space? OptiClear cleans junk files, finds duplicates, audits privacy permissions, and frees up gigabytes — without selling your data or pushing in-app upsells.
Why OptiClear is the best free Mac cleaner
OptiClear is built natively for macOS 14 and later. It runs in a sandbox, requests only the permissions it needs, and never uploads anything to the cloud. The free tier already includes a Disk Map, browser cookie cleaning, system monitor, and file browser — features many competitors lock behind a paywall.
What does OptiClear clean?
Browser caches and cookies, application leftovers, Xcode DerivedData, simulator runtimes, npm/pip/CocoaPods caches, mail attachments, duplicate photos, low-quality screenshots, large old downloads, system logs, and crash reports. Every cleanup target is reviewable before deletion.
Free vs Pro — what's included?
The free version covers everyday cleaning needs. Pro unlocks Deep System Analysis, Privacy Auditor, Developer Tools, Photo Analysis, and Smart Downloads. Pro is $2.99/month or $14.99/year — about 90% cheaper than CleanMyMac.
Is OptiClear safe to use?
Yes. OptiClear is distributed exclusively through the Mac App Store, code-signed and notarized by Apple. It runs in a strict sandbox, has no network telemetry, and shows you exactly what it will delete before any cleanup runs.
Frequently Asked Questions
Is OptiClear really free?
Yes. The core cleaning features are free forever with no time limit. Pro is optional.
Does OptiClear collect my data?
No. OptiClear runs entirely on your Mac. There is no telemetry, no analytics, and no cloud sync.
How much space can I expect to reclaim?
Most users reclaim 5–40 GB on the first scan. Developers often reclaim 20–80 GB from Xcode and Docker caches alone.
What macOS version do I need?
macOS 14.0 (Sonoma) or later. Both Apple Silicon and Intel Macs are supported.