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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Best extension for non Japanese speaker! I have been using it for many years now. Thank you!
It's the nicest popup dictionary extension I've used so far, but there is currently no option that I can see to have a monolingual dictionary, so I find myself having to return to Yomichan. Would be great if you're able to add this feature in the future.
Brilliant extension. Please support it for many years to come.
Doesn't work in Google search results in Opera browser. Quite frustrating as I love the add-on otherwise.
PEAK app
Just installed and spot some mistakes in this app. For example, 徐に should means slowly, calmly ONLY. Youngsters have misused it as suddenly way too often. I would recommend to switch it from non-standard to misuse (非標準的な → 誤用) Source: https://eigobu.jp/magazine/omomuroni
PEAK!
fell in love on the first sight (or try)
Highly recommended for online browsing, I also love how it gives just enough info on each word as well as pitch accent diagrams! 本当におすすめですよ
A great extension, thank you so much for your hard work! 1. Do you think it would be feasible to bring Japanese audio samples to this extension? Being able to hear the terms as I hover with the right pitch accent and repeating them would really help me in my learning process, even if it just plays the dictionary form of words or if not all words have an audio. If you implement it you could add a button to play the audio on click as well, because not everyone might want it to autoplay. 2. It would be nice to be able to select an expression in Japanese in text and see the matching items for that instead of what the mouse is over. That would help avoid mistakes when guessing what to select (for example in 日本語基本文法辞典 it incorrectly selects 基本文 instead of 基本). It could either be an alternative to "search on hover" selectable in the settings, or selecting text could simply always take precedence over "search on hover" whenever any text is selected. Have a great day ^^