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Uncap vs keyd: catalog facts
Uncap	keyd
Free Free and open source under the MIT license.	Free Free, with source code published on GitHub.
Windows	Linux, Command line
Maps Caps Lock to Escape Can map other keys to different keys	Works on X11, Wayland and the console alike Uses kernel input layer, not a desktop toolkit
The utility runs on Windows	Linux only Configured by editing files, no GUI
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 24, 2026

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