The Best Free Mac Cleaner for 2026
Mac feeling slow or running out of space? OptiClear finds junk files, duplicates, and risky privacy permissions, shows you exactly what takes up space, and cleans only what you approve — without selling your data.
Why choose OptiClear as your 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 your files to the cloud. Scanning is free: Disk Map, system monitor, file browser, and every scan show you where your space goes before you pay anything.
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?
Scanning, analysis, and reviewing results are free with no time limit. Cleaning and deleting — junk, duplicates, app leftovers, browser data, and developer caches — requires OptiClear Pro, available as a monthly or yearly subscription or a one-time purchase. Current prices are shown in the Mac App Store.
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, never asks for root access, and shows you exactly what it will delete before any cleanup runs.
Frequently Asked Questions
Is OptiClear really free?
Downloading and scanning are free with no time limit, so you can see exactly what can be cleaned. Removing files requires OptiClear Pro.
Does OptiClear collect my data?
Your files stay on your Mac — no file names, paths, or contents are ever sent, and there is no cloud sync and no account. OptiClear asks you once whether you want to share anonymous usage data, such as which screens you open. Decline and nothing is sent, and you can change your mind any time in Settings → Privacy.
How much space can I expect to reclaim?
It depends on how you use your Mac. OptiClear's free scan shows the exact amount on your Mac before you remove anything. Developer Macs often hold large Xcode and container caches.
What macOS version do I need?
macOS 14.0 (Sonoma) or later. Both Apple Silicon and Intel Macs are supported.