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Ashampoo WinOptimizerBleachBit
Paid

Commercial software sold as WinOptimizer Pro.

 Free

Free and open source under GPL-3.0-or-later; no payment or registration required…

Windows Windows, Linux, Command line
  • Many cleanup and tuning modules in one program
  • Covers junk files, system fixes and privacy settings
  • Preview lists every file before deletion; secure deletion (shredding) and free-space wiping are available
  • Command line interface for scripting and automation, and custom cleaners via CleanerML
  • Windows only
  • Paid software
  • Windows and Linux only; macOS support is described as experimental with limited features
  • Windows installer targets Windows 10 and 11; older Windows needs the 'Older Versions' downloads
Downloadable app Downloadable app
Closed source Open source
License not stated License: GPL-3.0-or-later
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 1, 2026

Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.