Rubito: Japanese Lookup

Instantly look up Japanese words and learn as you browse.

Rubito turns any web page into a Japanese reading lesson. See a word you don't know? Look it up instantly — no copy-paste, no switching apps. ■ HOW IT WORKS • Select any Japanese text on a page → a Rubito button appears → tap any word for a full dictionary entry. • Or click the floating Rubito button (or press R), drag over Japanese text, and read it word by word. • Text trapped inside an image, manga panel, canvas, or PDF? Rubito reads it with on-device OCR — nothing is uploaded. ■ WHAT YOU GET • Instant dictionary lookup — readings, meanings, JLPT level, example sentences, and alternate forms. • Furigana on demand — toggle readings over every word without the text jumping around. • Kanji breakdown — meaning, radical, on'/kun'yomi, and looping stroke-order animations. • Grammar explanations — meaning, how to use it, and examples. • Text-to-speech — hear any word, sentence, or reading spoken aloud. • Works in 14 languages — English, Vietnamese, Chinese (Simplified/Traditional), Korean, Indonesian, Thai, Filipino, Hindi, Bengali, Burmese, Nepali, Portuguese, and Urdu. ■ FREE TO USE Dictionary lookup, furigana, kanji, translation, and text-to-speech are free — no sign-in required. Sign in with Google to save favorites; Core and Pro plans add AI explanations and interactive practice quizzes. ■ PRIVACY OCR runs entirely on your device. We never sell your data. Sign-in is optional and only used to sync your favorites and plan. Perfect for Japanese learners, manga and light-novel readers, and anyone browsing Japanese sites.