The 9 Best System Cleaners in 2026
Ranked by a blend of community upvotes and verified user-review ratings — the top system cleaners our community recommends.
- 1Freemium
Revo UninstallerWindows uninstaller that scans for and removes leftover files, folders, and registry entries after program removal.
- 2Free
Bulk Crap UninstallerA free, open-source Windows tool for removing many unwanted programs at once with minimal input.
Best for: Users who need to strip bloatware or remove many programs at once, including ones with broken uninstallers.
- 3FreeGlary Utilities
Optimize and maintain your computer system
Best for: Home users seeking easy system maintenance
- 4
- 5
- 6Freemium
CleanMyMacA Mac cleaner and optimizer that removes junk, malware, and clutter.
Best for: Mac users who want an all-in-one cleanup, uninstall, and malware tool
- 7
- 8FreeWin11Debloat
Declutter and customize your Windows experience
Best for: Power users seeking Windows telemetry control
- 9FreePearcleaner
Open source Mac app uninstaller that finds every leftover file
Best for: Mac users who want a free, open-source way to fully remove apps and their leftover files, including Homebrew casks.
How this ranking works
Each product is scored by combining community upvotes with its average user-review rating (weighted by the number of reviews), so both popularity and real satisfaction count. Rankings update automatically as the community votes and reviews. Explore all System Cleaners or browse more ranked lists.
Get updates on the best System Cleaners
Rankings shift as the community votes and reviews. We'll send the notable changes once a week.