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Learn Japanese with Japanese-English video subtitles, instant dictionary translations, furigana, and romaji. Learn Japanese with Japanese-English video subtitles, instant dictionary translations, furigana, and vocabulary tools. --- **Zenbu Browser Extension turns videos and websites into immersive Japanese reading and listening practice. Read along with dual subtitles, translate words instantly, and save vocabulary without leaving the page.** Whether you're watching anime on Netflix, following a YouTube channel, or reading a news article, Zenbu Browser Extension removes the friction of looking things up so you can stay immersed and keep learning. ### 📺 Dual subtitles on YouTube & Netflix - See Japanese and English subtitles together, at the same time - Click any word in the subtitle to look it up instantly — the video keeps playing - A clear message appears when no Japanese subtitles are available, so you're never left guessing ### ⚡ Instant click-to-lookup, anywhere - Click a Japanese word on **any website** and get the meaning immediately - Powered by **Jitendex**, a rich, high-quality Japanese-English dictionary - No copy-pasting, no switching tabs, no breaking your flow ### 🔤 Read with confidence - **Furigana** over kanji so you always know the reading - Optional **romaji** for beginners - **Pitch-accent** markers to help your pronunciation sound natural - Built-in **audio playback** to hear words pronounced ### 🖼️ Read Japanese inside images - Run local OCR on a page image or the current video frame - Click parsed Japanese words underlined directly on the original image - Read, select, and copy the same recognized Japanese in the Zenbu sidebar - Toggle furigana or compact definitions beneath each parsed OCR word - Optionally translate one recognized region or a selected span into natural English - Natural Translate is an online action and sends only the selected OCR text to MyMemory ### 🌐 Translate a whole idea - Select a complete Japanese sentence or passage on a website - Click **Natural Translate** in the top bar to see natural English in the sidebar - Keep individual underlined words reserved for fast dictionary lookup - Nothing is sent for translation until you explicitly click the action ### 💾 Save words & export to Anki - Save any word — along with the sentence it appeared in — into your own decks - One-click jump back to the exact moment in a video where you saved a word - **Export your decks as TSV** to import straight into Anki for spaced-repetition review ### 🔒 Private & offline-friendly - The dictionary is downloaded and stored locally on your device - Images, OCR, dictionary lookups, and saved vocabulary stay on your device - Online translation happens only after you explicitly select a Natural Translate action ### 🌐 Works where you already are - **YouTube** — dual subtitles + clickable words - **Netflix** — dual subtitles + clickable words - **Any website** — click-to-lookup, furigana annotation, selection translation, sidebar tools, and image OCR --- **Stop pausing to type words into a dictionary. With Zenbu Browser Extension, looking up Japanese is as fast as a click—so you can spend your time learning, not searching.**
Aug 14, 2026
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