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13日2026年7月16日2026年7月19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13日2026年7月16日2026年7月19日Latest: 4.66
2026年7月13日2026年7月19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
Doug2012年8月25日
5

Love the app however it is lacking some of the features that are available in the firefox edition. In particular the feature to save vocabulary to a word file which is useful for revision. please include this in the chrome edition and you will have my love forever.

Language en
1 helpful · 0 not helpful
Anonymous user2012年8月24日
5

Awesome Extension.

Language en
Tash Pool2012年8月15日
5

素晴らしい有用! A great extension that is very useful. Some options still need to be implemented, but the main functionality is present and does not disappoint. Recommended!

Language en
3 helpful · 0 not helpful
Linsey Edn2012年8月15日
3

The Chrome version has a serious bug that has bothered me. After I do a Google search for a Japanese term, if I hover over that sentence, there is an issue. If I highlight a word with Rikaichan which is right after the search term, it will not display the Rikaichan results. Instead, it will loop over to the beginning of the sentence or title. For example, if I search for "勉強" I may hover over the title for a site called "アメリカで勉強します". If I hover over します with Rikaichan, it will incorrectly give me the result for アメリカ instead. As a former programmer, I assume this is a problem with the specified length of a string. Sorry that this was less of a review and more of a bug report, but I couldn't find a more appropriate site.

Language en
Anol Paisal2012年8月13日
4

I used first this extension in firefox. It's very nice. Right now I found this extension in Chrome app. I love it. but in Chrome cannot setting anymore look like firefox add-on yet. I hope it better look like firefox add-on.

Language en
Tobias Carlsson2012年8月10日
5

This is awesome! So easy to use and extremely handy. I'm looking forward to future updates!

Language en
Anonymous user2012年8月5日
4

Please please please - add an option to make the popup sticky. Right now it disappears once you move mouse away, and you can't really c&p anything from the popup or click any of the links there.

Language en
1 helpful · 0 not helpful
Kendo Daisuki2012年8月5日
5

great, but i'm wondering if there will be other languages in the future (french for example)

Language en
10 helpful · 0 not helpful
Kenny Lee2012年8月2日
4

This is amazing. But it will be easy for Japanese learner by adding Romanji feature.

Language en
Jason Lim2012年8月1日
5

works well !

Language en