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Letters vs WebkitWord: catalog facts
Letters	WebkitWord
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source under the GPL-3.0.
Linux	Linux
Designed to fit the GNOME desktop Available as a Flatpak from Flathub	Native GTK4 and Libadwaita interface Lightweight compared with a full office suite
Very new project, started in 2026 Linux only	Early-stage project from version 0.1 Linux only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
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.