10ten Japanese Reader (Rikaichamp)
Quickly translate Japanese by hovering over words. Formerly released as Rikaichamp.
10ten Japanese Reader (Rikaichamp) - Fast Japanese Translation
10ten Japanese Reader (Rikaichamp) is a unique Firefox add-on that instantly translates Japanese words on hover. It offers comprehensive features like pitch accent information, auto-updating of dictionaries, support for non-English dictionaries, translation of Japanese yen amounts, numbers, era years, measurements, and shogi moves. It recognizes a range of grammatical forms and provides localized translations in Japanese and Simplified Chinese. It also offers Kanji data for Kanji kentei, and ensures minimal memory usage for seamless operation.
Add-on stats
Weekly download count: 305
Firefox on Android: Yes
Risk impact: High risk impact 
Risk likelihood:
Manifest version: 2
Permissions:
- alarms
- clipboardWrite
- contextMenus
- storage
- unlimitedStorage
Size: 18.12M
Email: in*****@birchill.co.jp
URLs: Website ,Privacy policy
Ranking
# 483 ▲ 3
Other platforms
Not available on Android
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Add-on summary
Look up Japanese words with the hover of a mouse.
After enabling the add-on from the toolbar (or press Alt+R) simply hover over Japanese text and a popup displays corresponding dictionary definitions.
Features:
- Pitch accent information
- Automatically updating dictionaries (updating twice a week)
- Support for non-English dictionaries
- Translation of
- Japanese yen amounts (e.g. 30億円) into another currency,
- Japanese numbers (e.g. 13億5千万 into 1,350,000,000),
- Japanese-era years (e.g. 昭和５６年、令和元年),
- 畳/帖 measurements (e.g. 四畳半、12.6 帖),
- shogi moves (e.g. ☗８三銀引成)
- Recognition of a wide range of grammatical forms (e.g. 兼した, 食べてた, 分からん、じーちゃん、頑張ろー、そーゆー, 買っとく etc.)
- Automatic preview of name entries
- Handling of a wide range of characters (e.g. ㌀, ㋿, 𠏹沢, ８月, Ｂ級グルメ, オーサカ)
- Localized into Japanese (so you can study Japanese while you study Japanese!) and Simplified Chinese
- Romaji transliteration
- Copy to clipboard in various formats
- Support for the widest range of Web content (vertical text, SVG images, hidden text etc.)
- Minimal memory usage
- Kanji data for Kanji kentei, Conning references, updated educational levels, heavily reworked kanji components etc.
Twitter: @10tenstudy
User reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated. Pros
- Easy to use
- Works well for reading and language learning
- Useful features for immersion reading and studying Japanese
- Good recognition of words
Cons
- Issues with updating the add-on
- Bundled font change is not consistent with system fonts
- Homonyms make it difficult to find specific words
- Clicking the icon doesn't always activate it on the first try
Most mentioned
- Works well after installation
- Useful for learning Japanese
- Font issues reported
- Problems with homonym word searches
- Activation click issues
User reviews
Amazing extension, this is going to help me a lot to learn Japanese. One feature I wish it had is to display furigana over kanji when on hover. That aside, I'm glad I found this extension. Good job!
by Shaitan Venit, 2024-12-20
Does not work at all.
by hhoganmc, 2024-11-10
This is very easy to use. The Japanese accent is really useful when I look up the new words and try to speak them.
by Boris Chiou, 2024-11-07
Add-on safety
Risk impact
10ten Japanese Reader (Rikaichamp) requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk likelihood
10ten Japanese Reader (Rikaichamp) is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
Upgrade to see risk analysis details