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XKey vs Keyman: catalog facts
XKey	Keyman
Free Free, with source code published on GitHub.	Free Free and open source on all platforms.
macOS	Windows, macOS, Linux, Android, iOS, Web
Native macOS input method Documentation in Vietnamese and English	Keyboards for over 2,500 languages Available on desktop, mobile and web
macOS only Small single-developer project	Layouts must be found and installed separately for each language
Downloadable app	Downloadable app, Web application
Closed source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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