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Jisho vs Kotoba: catalog facts
Jisho	Kotoba
Free Free to use online.	Free Free and open source under the GPL-3.0-or-later licence.
Web	Linux
Kanji lookup by radicals or handwriting Searches words, kanji, sentences and names at once	Native GTK and libadwaita interface Written in Rust
Works only online Japanese-English only	Very young project, created in 2026 Linux only
Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-or-later
No account needed	Not stated if an account is needed
Needs internet	Not stated if it 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.