Yaku is an offline-first Japanese-English, Kokugo, and kanji dictionary for JLPT learners, readers, and native speakers. Can't read a kanji? Draw it with on-device handwriting recognition, look up words by kanji, hiragana, katakana, romaji, or English, check pitch accent, conjugations, and stroke order, and export to Anki.

Free, with no ads or subscriptions. Optional Supporter purchase adds traditional color themes; all study features stay free.

KEY FEATURES

Search & Kanji Lookup

* Offline Japanese-English Dictionary: 200,000+ entries with definitions, EN/JA part-of-speech labels, furigana, romaji, JLPT N5-N1 levels, and #common tags.

* Draw Kanji You Can't Read: Draw kanji, hiragana, or katakana. On-device handwriting recognition identifies 6,500+ characters offline.

* Search & Hashtag Filters: Search kanji, kana, romaji, idioms (yojijukugo), and English with de-inflection. Filter by #common, #n1-#n5, #gairaigo, #waseieigo, #keigo, #medical, #computing.

* Tap & Select to Search: Tap headwords, furigana, character tiles, or meanings to search compounds, or select text in any app and tap "Search in Yaku".

Kanji, Pitch Accent & Grammar

* Kokugo (国語) Definitions: Switch to 89,500+ native Japanese definitions and examples from Wiktionary and Japanese WordNet, separating homographs.

* Pitch Accent Dictionary: Pitch curves, downstep numbers, and badges (Heiban, Atamadaka, Nakadaka, Odaka) from Kanjium and Wadoku show pronunciation.

* Offline Kanji Dictionary & Stroke Order: Animated stroke order diagrams, on'yomi and kun'yomi readings, 214 radicals, and grade/JLPT lists.

* Conjugation Tables: Ichidan, Godan, kuru, suru verbs and i-adjectives in 20+ forms, from polite to passive, causative, and -tai.

* Read Casual Japanese: Contracted forms from manga and chat (~chau, ~toku, ~sugiru) trace back to dictionary form with reason badges.

Reading, Vocabulary & Anki Study

* Anki Flashcard Export: Export favorites, study lists, or JLPT levels to .apkg SRS flashcards with pitch diagrams, examples, and yaku://entry links to reopen entries.

* Sentence Breakdown: Split pasted text into words, conjugated forms, and particles.

* Example Sentences: Paired Japanese-English sentences from Tatoeba show words in context.

* Japanese Thesaurus: WordNet synonyms, broader terms, and narrower terms by sense.

* Loanwords & Wasei-eigo: Trace katakana loanword origins and spot Japanese-made English (#waseieigo).

Customization & Offline Data

* Make It Yours: Reorder cards, toggle data layers (pitch, Kokugo, names, WordNet), adjust font size, and jump via table of contents.

* Japanese Names (JMnedict): 740,000+ names, places, stations, and companies. Optional ~69 MB one-time pack via Google Play.

* Lists, History & Backup: Favorites, study lists, history, and zip backups.

* Tablets & Dark Mode: Side rail and two-column layouts for tablets and foldables, dark mode, and color themes.

Install Yaku to look up your first word, kanji, or pitch accent offline.

PRIVACY

No accounts, analytics, or telemetry. Searches, lists, and history stay on your device.

DATA SOURCES & LICENSES

- JMdict, KANJIDIC2 & JMnedict (EDRDG)
- Wadoku & Kanjium pitch accent data
- Japanese WordNet (NICT) & Kaikki Wiktionary
- Tatoeba bilingual examples
- KanjiVG stroke order data (Ulrich Apel)
- DaKanji handwriting model by Dariyooo (DaAppLab)

Full license attributions are in Settings. Yaku (訳) stands for Yet Another Kokugo Utility.

TRADEMARKS & DISCLAIMERS

Anki is a registered trademark of Damien Elmes and Ankitects Pty Ltd. JLPT is a registered trademark of JEES and Japan Foundation. Uses EDRDG files under license. Yaku is not affiliated with these organizations.