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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This extension is very useful especially for pitch accent information and word detection system! Thank you very much! この拡張機能は、特にアクセント情報と単語検出システムに非常に役立ちます！ どうもありがとう！
Unlike rikaikun, rikaichamp shows pitch accent information, which is a must-have! Because of that, I had to use Firefox when I needed to read something Japanese, but now rikaichamp is here too.
By far the best of its kind out there. I'd been using this on Firefox and then switched to Brave some months ago and was disappointed by how the only thing similar to rikaichamp was rikaikun, which has a much less flexible word detection system and as of writing this still doesn't have the infinitely useful feature that is pitch accent information. I'm really glad this has finally arrived at the chrome web store.
I've been waiting for this to hit Chrome/Chromium browsers from Firefox! Just from my initial testing, I can already tell how much better Rikaichamp is than the standard Rikaikun. Way better dictionary that catches more stuff.