Stable signalNo paid features detectedMedium-risk permissions
rikaikun icon

rikaikun

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

Users200KCurrent public install base
Rating4.7Store average score
Reviews1,865Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview

rikaikun Media preview

5 assets
Trend

User growth trend

Review user movement across collected snapshots.

User Growth Over Time

200K200K200K200K200K2026年7月15日2026年7月18日2026年7月21日Latest: 200K
Rating trend

7-day rating trend

View collected rating snapshots from the latest 7-day window to assess rating stability.

7-day rating change

Start
4.66
Latest
4.66
7-day rating change
0.00
4.564.614.664.714.762026年7月15日2026年7月18日2026年7月21日Latest: 4.66
2026年7月15日2026年7月21日
Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthFlat
00%
7-day growthFlat
00%
30-day growthFlat
00%
Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version3.2.26
ManifestV3
Size28.11MiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

Review the store description, core capabilities, and common use cases.

As a Japanese dictionary, rikaikun helps you look up the only the words you don't know without losing your place. It's also useful for Japanese speakers wanting to know how to say Japanese phrases in English.

Features:

* Using shift or enter, switch between word, names, and Kanji dictionaries.

* Enable text to speech in the options to hear Japanese words you look up spoken out load.

* Press 'c' to copy the current word and definitions to the clipboard for making flash cards.

* Customize how the pop up dictionary looks and what content it shows.

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

Store average score4.7Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.4Average computed only from synced review bodies below
Reviews with text566Synced review bodies
Total ratings / reviews1,865Chrome 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.

5
387
4
90
3
40
2
24
1
25
Luke Idori2013年8月30日
5

Absolutely essential for Japanese learners.

Language en
Adlin I2013年8月11日
5

Great for helping me study Japanese. Works flawlessly.

Language en
El Ja2013年7月24日
5

Has all the basic functionality of the original Firefox plugin with no issues here. Great work! (Hint: Shift click to display individual Kanji radical derivations) Will this be available in any other languages?

Language en
5 helpful · 0 not helpful
Tran Bach2013年7月24日
5

Awesome!!! It's really helpful for my Japanese learning

Language en
Ss Da2013年6月16日
5

yaaaaass

Language id
1 helpful · 0 not helpful
Paul Frischknecht2013年6月3日
5

Thank you so much, this will help me a lot!

Language en
Jana Krahulcova2013年6月1日
1

I have just got this extension and it doesn't work at all. I don't know what wrong with it, but it really is not worth having.

Language en
Vanessa Wang2013年5月23日
4

I find it quite helpful when I teach my Japanese class but this extension seems to be most popular with casual users so I believe an implementation of a romaji system would be very helpful for them.

Language en
Jacob Morris2013年5月15日
5

It is extremely helpful when it comes to translating Japanese. It's like having a dictionary but easier to find what I need to know.

Language en
1 helpful · 0 not helpful
Ken Lee2013年5月10日
5

It's very useful... :)

Language en
4 helpful · 1 not helpful