Read Japanese,side by side.
Japanese — and 15 other languages — next to natural English, on web pages, PDFs, video and audio.
Each translation sits right under its original paragraph, like a single thread. Keep the source in view, check the nuance, and look up the names you don’t know as you read.
No credit card needed. Up to 30,000 characters a month on the free plan. Install the extension →
One tool for what you read in your browser — Japanese news, papers, manuals and videos.
Translations are woven under each paragraph of the page you are reading. The layout stays intact so you can compare as you read.
Read papers and documents with the page and its translation side by side. Save the result as bilingual HTML.
Show subtitles on YouTube and more in two languages — for learning Japanese or following talks and shows from Japan.
Listens to the audio playing in a tab and shows the translation like captions — even for live streams and webinars without subtitles.
People, organizations, places and works get a dotted underline. Hover to see the reading, a key point and the Wikipedia summary.
の『』は、の最新の展覧会で記録的な来場者を集めました。
Hover over or tap an underlined term.
With the translation right under each paragraph, you read the Japanese first and check only what you didn’t get — so the articles and videos you enjoy become your study material.
どの糸も、物語の一部を語っている。
Every thread tells part of the story.
Hover or tap to reveal the translationFor Chrome and Safari. Switch any page to bilingual with one click on the bookmark ribbon at the right edge.
Add it from the Chrome Web Store or the App Store.
Use your email, Google, Apple, Yahoo! JAPAN or LINE.
Press the ribbon at the right edge and translations appear under the original.
All paid plans translate with the same high-accuracy AI model — they differ only in features and allowances.
Try it out
Free
For daily reading
¥980/mo
For work and research
¥1,980/mo
Taiyaku is an AI translation service for reading web pages, PDFs, video subtitles and audio side by side with the original. Each translation sits right under or beside its source paragraph, so you can compare as you read. Use it on this site for text, PDF and web page translation, and with the Chrome & Safari extension.
Taiyaku has a free plan with 30,000 characters of web and text translation, 20 PDF pages and 10 minutes of audio translation a month once you verify your email. The paid Basic (¥980/month) and Pro (¥1,980/month) plans raise the limits and add automatic knowledge cards and 2–3 languages at once (prices in JPY, tax included). You can also try it without signing up: up to 20,000 characters of text and 2 PDF pages.
Taiyaku is built for reading with the original in view: translations appear right under or beside the source text, so you can check the nuance as you read. Names of people, organizations and places get knowledge cards with their reading and a short explanation, PDFs are shown side by side, and videos get bilingual subtitles.
Taiyaku's PDF translator opens a PDF in your browser and shows each page next to its translation. You can translate only the pages you need and download the result as bilingual HTML (free plan: 20 pages a month, files up to 10 MB).
With the Taiyaku extension, YouTube and other videos show the original and translated subtitles together, with adjustable size and position, even in full screen. For streams and webinars without subtitles, tab audio translation (Chrome) shows the translation as captions.
The Taiyaku extension supports Google Chrome (and Chromium browsers such as Edge) and Safari on macOS. Text, PDF and web page translation on this site work in any modern browser.
Taiyaku supports 16 languages: Japanese, English, Chinese (Simplified), Chinese (Traditional), Korean, French, German, Spanish, Portuguese, Italian, Russian, Vietnamese, Thai, Indonesian, Arabic, Hindi. The source language is detected automatically.
Taiyaku translates between any of its 16 languages, not just Japanese and English. Paid plans can show translations into 2–3 languages at once under the original.
Taiyaku does not use the content you send for translation, or its translations, to train AI models, and the AI providers it uses are bound by terms or settings that keep the data out of training. Text and PDF history is deleted automatically after 7 days to 1 year depending on your plan, and web page, subtitle and audio translations after 24 hours.
You can cancel a Taiyaku plan anytime from “Manage billing” in your account settings and keep using it until the end of the paid period.
Taiyaku's knowledge cards show the reading and a short explanation for people, organizations, places and works in the text. On Basic and above they appear automatically while translating; on the free plan you can look up selected terms up to 30 times a month.
Sign-up takes a minute. Start right away on the free plan.