rikaikun

rikaikun shows the reading and English definition of Japanese words when you hover over Japanese text in the browser.

Rikaikun - Revitalizing Japanese Learning with Chrome

Rikaikun is a progressive Chrome extension designed to aid in learning the Japanese language. It functions as a dictionary, providing instantaneous translations and readings of Japanese words when you hover over them. It incorporates additional features like text-to-speech support for pronunciation assistance, and a unique provision of transferring word definitions to the clipboard, thus enabling easy creation of flashcards. This tool is not only handy for language learners but also helpful for Japanese speakers wanting to translate phrases into English.
Install from Chrome Web Store

Extension stats

Manifest V3
Users: 200,000+
Version: 3.1.10 (Last updated: 2025-03-05)
Creation date: 2019-09-23
Permissions:
  • clipboardWrite
  • storage
  • offscreen
Size: 29.10M
Full description: See detailed description

Other platforms

Not available on Android
Not available on Firefox
rikaikun (v2.2.3)
11,227+ 4.80 (12)

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Very useful for learning and translating Japanese text
  • Works perfectly for most users
  • Instantaneous online lookups
  • Intuitive and informative
  • High satisfaction from long-term users
Cons
  • Occasional failures to show translations or definitions
  • Does not work on sites blocking JavaScript
  • User desire for more language options beyond English
  • Inconsistent functionality reported by some users
Most mentioned
  • Not showing translations or meanings intermittently
  • Works well for Japanese translations
  • Desire for additional language support
  • Dependence on JavaScript for functionality
  • Issues with voice options for text-to-speech feature
User reviews
Why English translation is not shown in my Chrome browser? Could you please help me? Thank you in advance..
by Additives Polymate, 2025-01-21

yani hoşuma gitti ancak keşke sadece Japonca metinleri İngilizceye çeviriyor bunun yerine Türkçe vb. dillerde çevrilebilse güzel olur
by Cem Türk, 2024-12-12

For me it worked perfectly until recently. Now it does not work at all. I am not sure of the reason. I changed the size and colour of mouse pointer (because I sometimes lost track of it on the screen). I really wish it worked like it did previously.
by Dariusz Michalczyk, 2024-12-11
View all user reviews

Extension safety

Risk impact

rikaikun requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
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Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of rikaikun. Use it at your own risk.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
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Promo images

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