Lector From $5/mo · Free plan 9.1 Visit jidoujisho
github.com
What it is
jidoujisho brings video playback, reading, dictionary lookup and flashcard creation into an Android language-learning app. It handles local media, YouTube videos, Jellyfin streams and direct URLs, with word lookup by tapping or dragging across subtitles and paragraphs. Readers can open offline books in the embedded ッツ Ebook Reader or read manga processed with Mokuro. For study cards, users can edit fields and export the current image and audio to AnkiDroid. Dictionary support covers Yomichan, Migaku and ABBYY Lingvo DSL formats; dictionary data is not bundled, and Yomichan structured-content dictionaries are unsupported. Listed services include ChatGPT, Bing image search, Forvo, JapanesePod101 audio search, and example sentences from Massif, Tatoeba and ImmersionKit. WebSocket support allows use with texthookers. Japanese and English are officially supported; other languages depend on dictionary format and search support. jidoujisho is free and open source under GPL-3.0. It requires Android 7.0 or later and AnkiDroid. External subtitles include SRT, ASS and SSA, but not image-based PGS.
Spec sheet
- Purpose
- jidoujisho is a mobile immersion language learning suite combining a video player, reading aid, dictionary and flashcard creation toolkit.Read 9 Oct 2026 · github.com
- Product
- jidoujisho is a mobile video player, reading aid, dictionary and card creation toolkit for language learners.Read 8 Oct 2026 · github.com
- Support
- The maker’s profile invites users to seek help through the project’s issue trackers, Discord or email.Read 9 Oct 2026 · github.com
- License
- The repository makes the app available under the GNU General Public License 3.0.Read 9 Oct 2026 · github.com
- Android requirement
- The installation guide requires Android 7.0 or above and says users also need AnkiDroid.Read 8 Oct 2026 · github.com
- Dictionaries
- The app supports Yomichan, Migaku and ABBYY Lingvo DSL dictionary formats, but does not bundle dictionary data.Read 9 Oct 2026 · github.com
- Dictionary integrations
- The app supports Yomichan, Migaku and DSL dictionary formats; Yomichan dictionaries using structured-content are currently unsupported.Read 8 Oct 2026 · github.com
- Flashcards
- Users can export AnkiDroid flashcards with the current context’s image and audio.Read 9 Oct 2026 · github.com
- iOS availability
- The project says it does not plan an iOS version because platform differences, file permissions, third-party services and store compliance would require compromises.Read 9 Oct 2026 · github.com
- Language support
- Japanese and English are officially supported, and other languages may work depending on dictionary format and search algorithm support.Read 9 Oct 2026 · github.com
- Lookups
- Users can tap or drag over subtitles and paragraphs to look up words in dictionaries.Read 9 Oct 2026 · github.com
- Media
- The player supports local video and audio, YouTube, Jellyfin libraries and direct stream URLs.Read 9 Oct 2026 · github.com
- Media formats
- External subtitle formats include SRT, ASS and SSA, while image-based PGS subtitles are not supported.Read 9 Oct 2026 · github.com
- Media limits
- The app does not host media, and image-based PGS subtitles are not currently supported.Read 8 Oct 2026 · github.com
- Other integrations
- The project lists ChatGPT, Bing image search, Forvo and JapanesePod101 audio search, and Massif, Tatoeba and ImmersionKit example sentences among its services.Read 8 Oct 2026 · github.com
- Project status
- The repository says development alternates between implementing changes and periods when the app is left alone for daily use, so update frequency may vary.Read 9 Oct 2026 · github.com
- Project support
- The project seeks contributors and says update frequency may depend on the severity of issues, with development alternating between active changes and periods of daily-use maintenance.Read 8 Oct 2026 · github.com
- Reading
- The app includes an offline-capable ebook reader and can read Mokuro-preprocessed manga.Read 9 Oct 2026 · github.com
- Requirements
- Installation requires Android 7.0 or above, and the app is installed from a GitHub APK selected for the device’s architecture.Read 9 Oct 2026 · github.com
- Security and permissions
- The setup instructions say installation requests file storage permission and permission to interact with AnkiDroid.Read 9 Oct 2026 · github.com
- Supported languages
- The FAQ says Japanese and English are officially supported, while other languages may work depending on dictionary format and search algorithm support.Read 8 Oct 2026 · github.com
- Technical integration
- WebSocket support allows use alongside texthookers for visual novels, games and other content.Read 8 Oct 2026 · github.com
Plans and prices
Free Free Free and open-source software · Android 7.0+ Read 9 Oct 2026 · github.com
Strong points and limits
Strong points
- Plays local media, YouTube, Jellyfin streams and direct URLs
- Offline book reading and Mokuro manga support
- Exports editable cards with image and audio to AnkiDroid
- Supports several dictionary formats and language-learning services
Limits
- Requires Android 7.0 or above and AnkiDroid
- No iOS version
- Does not bundle dictionary data
- Image-based PGS subtitles are unsupported
Who it suits
It suits language learners who want to look up words in video subtitles or reading material and build AnkiDroid cards. Japanese and English are the officially supported languages, and use requires Android 7.0 or above.
Verdict
jidoujisho combines media, reading, lookup and card creation in a free, open-source Android app. Check the Android and AnkiDroid requirements, and whether its dictionary and subtitle limits fit your setup.
Where Specifiction places it
- Language Immersion Apps#5 of 258.3
- JSON Tools#8 of 298.3
