rikaikun
Education
rikaikun shows the reading and English definition of Japanese words when you hover over Japanese text in the browser.
Users
200K
Rating
4.7
Reviews
1,865
7D Growth
0|0%
Stable signalUnknownMedium-risk permissions
10ten Japanese Reader (Rikaichamp)
Translate Japanese by hovering over words.
Users30KCurrent public install base
Rating4.7Store average score
Reviews100Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
6 assets10ten Japanese Reader (Rikaichamp) Media preview
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Start
4.67
Latest
4.67
7-day rating change
0.00
2026年7月14日2026年7月20日
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Version1.26.1
ManifestV3
Size17.08MiB
Languages3English / 中文（中国） / 日本語
Published
Store updated
Last crawled
English中文（中国）日本語
Overview
Product summary
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Quickly look up Japanese words on any text page by activating the add-on from the toolbar (you may need to use the Extensions menu to pin the icon to the toolbar) or pressing Alt+R.
Features:
• Pitch accent information
• Dictionaries that update automatically twice a week
• Recognition of a wide range of grammatical forms and characters (e.g. 食べてた, 分からん, 知らん, じーちゃん, 頑張ろー, そーゆー, ぬ verbs, とく・どく forms, causative passive, vs-c verbs like 兼した, and characters like ㋕, ㌀, ㋿, 𠏹沢, and many more)
• Translation of Japanese numbers into Arabic numerals (e.g. 13億5千万 into 1,350,000,000)
Reviews
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Store average score4.7Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.6Average computed only from synced review bodies below
Reviews with text74Synced review bodies
Total ratings / reviews100Chrome Web Store public rating/review count
Store average score: 4.7. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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You have done a fantastic job with this extension. Thank you so much for creating it!
The best thing since sliced bread!
that's a best extension for nihongo learner
Perfect for my needs. Tried yomichan and in comparison this is a lot easier to get going and easier on the eyes imo, no need to install dictionaries and therefore feels a lot less bloaty - this just works right out of the box. Fantastic work. Thank you.
In its current state this extension is incredible. Easily chipping away at a complicated syllabary that takes a significant personal effort to even begin to recognize the most important characters, right there at the tip of your mouse cursor. A wealth of information is presented an easy to read format that helps you reinforce all of the intricacies of the language, as you begin to learn them and recognize the patterns. Toggling on the additional Romaji text really helps to speed up the rate at which you can memorize individual symbols, by having a reminder always ready at a flash. 理解チャンプ、「最高」！
Incredible!
This extension is literally flawless. It does translation, and it does it the best way possible. A lot of information is shown but the results are presented in a structured manner that is easy to understand. It is responsive and the UI is intuitive and highly customizable. Oh, and now mouse support is added. I literally cannot think of any way this extension could be better. Thanks!
I have tried so many tools to help learn Japanese and this is easily my favorite. The level of speed and customizing is perfect. I am mad I was not aware of this for the years of learning Japanese prior. Nothing is more satisfying then seeing a Kanji you forgot/don't know and quickly toggling it on and hovering over it.
An incredibly useful tool, and amazingly helpful developers! I am using it on both Chrome and Firefox now. The regular updates add a lot of cool features too. For example, now I can use the mouse to move between the tabs of the popup, without pressing any keys. Thanks!
It's like the first time ever I write a review for a chrome app, but it's really a fantastic add-on, congratz. I love the new addition that the pop-up remains and I can browse it with the mouse. I saw almost a year ago that the main dev (?) was talking about WaniKani level integration. I think that would be super useful, especially since a huge part of that userbase uses 10ten to study Japanese through immersion online. Seeing on which level a kanji is taught would be really cool. In any case, thanks for the development!