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SophiAppOptimizer
Free

Free and open source under the MIT licence, with optional donations.

 Free

Free and open source, no longer developed.

Windows Windows
  • Graphical interface for many Windows settings in one place
  • Covers both Windows 10 and Windows 11
  • Many privacy and performance tweaks in one portable program
  • Available in 24 languages
  • Windows only
  • System tweaks can change behaviour in ways that are hard to trace later
  • Deprecated and archived; the author points users to OptimizerNXT
  • System tweaks such as stopping updates or disabling Defender can leave Windows less secure
Downloadable app Downloadable app
Open source Open source
License: MIT License: GPL-3.0
No account needed No account needed
Not stated if it works offline Works offline

Checked October 2, 2026

Checked September 26, 2026

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