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Windhawk vs Rectify11: catalog facts
Windhawk	Rectify11
Free Free and open source. Hosting, hardware and any external services are separate.	Free Free Windows 11 utility.
Windows	Windows
Manages downloadable customization modules Includes tools for writing your own mods	Targets specific Windows 11 UI inconsistencies rather than a full theme overhaul Free to use
Mods run code inside applications and can need updates when those applications change.	Limited detail available on scope and update frequency Windows 11 only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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