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Kotoba vs GoldenDict-ng: catalog facts
Kotoba	GoldenDict-ng
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source under the GPL-3.0-or-later licence.
Linux	Windows, macOS, Linux
Native GTK and libadwaita interface Written in Rust	Reads MDX, DSL, StarDict, Zim and other formats Shows several dictionaries' results on one page
Very young project, created in 2026 Linux only	Dictionaries must be obtained and added separately Many options to configure for a new user
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
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 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.