Kanji Dojo is an open-source app for learning Japanese characters, their meanings and readings, and related vocabulary. It includes hiragana, katakana, and more than 6,000 characters, with study paths organized by JLPT level, school grade, or WaniKani level; learners can combine those groupings. Flashcards and spaced repetition support practice, including vocabulary examples, and a searchable dictionary covers characters and words. After downloading the required learning materials, users can continue studying offline. The learning content is free, while some extra features are paid to help cover backend and development expenses. The app is available on Android, iOS, Linux, macOS, web, and Windows. Its privacy policy describes aggregated usage analytics and crash diagnostics, and says information is not shared or sold to third parties for marketing. The project is community driven, so requested features may depend on an interested contributor. The linked GitHub repository lists the GNU GPL version 3 or later license and was archived on August 27, 2026, leaving it read-only.
Who it is for
It suits Japanese learners who want character writing practice, vocabulary examples, and study paths organized by level or grade. Offline study is available after downloading learning materials.
What is good
- Covers hiragana, katakana, and over 6,000 characters.
- Study paths include JLPT, school grade, and WaniKani levels.
- Uses spaced repetition and flashcards.
- Includes a searchable character and word dictionary.
- Supports offline study after materials are downloaded.
What to know first
- Some extra features are paid.
- Feature requests may depend on an interested contributor.
- The GitHub repository is archived and read-only.
Verdict
Kanji Dojo brings character study, vocabulary, and dictionary lookup together across mobile, desktop, and web platforms. Its learning content is free, but the archived repository and community-dependent development are worth considering.
Kanji Dojo plans and pricing
All plansCompared on handwriting practice apps
- Free plan
- Yes
- Pen-control exercises
- Yes
- Supported platforms
- Windows, macOS, Linux, Android, iOS


