rikaikun

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

Latest reviews

• (2025-07-12) Khoi nguyen: one of the best tools i've ever used to study japanese :) hope this get on firefox soon!
• (2025-05-11) Edward Lee: This app has been my best buddy at work for more than 5 years. Thank you so much!
• (2025-04-09) Nathan f: Excellent. The only issue is that is works so well most of the time that you sometimes get lazy and use it before you've even attempted to read the sentence. Functionally it sometimes translates a part of a phrase or conjugation, instead of the whole thing. Though I imagine that's hard to avoid with a complex language like Japanese.
• (2025-01-21) Additives Polymate: Why English translation is not shown in my Chrome browser? Could you please help me? Thank you in advance..
• (2024-12-11) Dariusz Michalczyk: 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.
• (2024-12-06) Aikido Banyuaiki Dojo Roma: Very useful, thank you so much!
• (2024-11-03) h dev: Perfect.
• (2024-11-01) Leong: so much better than i expected
• (2024-10-03) Evan Hunt: Incredible learning tool. It makes makes online lookups instantaneous. Very intuitive and informative especially if you're willing to learn the dictionary tags
• (2024-09-27) Bùi Vinh: can't work on some sites blocking javascript like chatgpt but on everything else, the extension works flawlessly
• (2024-07-13) MrLeung99: This is very useful but does anyone know how I can enable this extension by default when I launch Chrome? Now everytime I must click on the icon so it's "On"
• (2024-07-13) MrLeung99: This is very useful but does anyone know how I can enable this extension by default when I launch Chrome? Now everytime I must click on the icon so it's "On"
• (2024-06-04) Marcin B: Works perfectly
• (2024-05-21) Jenna “jendart” Drummond: Awesome extension, I've used it all the way from beginner Japanese to fluent and N1. If the definitions disappear like the below review, just press 'D' while the popup is showing and they will come back!
• (2024-05-21) MX Vang: I love this extension, but every now and then, the meaning of the kanji stops appearing, defeating the purporse of this extension. Even when I restart my computer, it'll stay this way for a random amount of time before working normally again on a later day.
• (2024-05-05) Uriel Reyes: THIS IS SOOOO COOOL
• (2024-04-29) won ho is mine: NO LONGER WORKING
• (2024-04-23) Mitch W: Great. Hovers over the kanji and provides the reading.
• (2024-03-29) Mademade Yo: Thank you very much. Rikaikun is a very useful extension for both Chrome and Edge. However, I found the text-to-voice had changed to female voice from male voice. The male voice was very clear, but the female voice seems to be muffled and not vigorous. Is there any chance to change it back to male voice? Thank you again for this useful extension 'Rikaikun'. Warm regards, Yo
• (2024-03-03) Grace F: i have been using this since 2008 back when it was rikaichan. always helpful. thank you so much
• (2024-02-13) Levi: Been using this for a while now!! its really useful.
• (2024-02-04) Brayden Buhler: It isn't working at all for me. No pop ups or anything. It does have the "On" tag over the extension logo but it doesn't seem to do anything at all. Alero Inyang seems to have had a similar experience. Edit: ... I just had to refresh the browser after downloading the extension... バカみたいだ！(^_^;)
• (2024-01-12) Alice Clarke: can't live without this extension thank you for my life
• (2024-01-11) Isoke Atiba: It's working on other sites, but I really need this for Wikipedia and it's not working there. Any way you can help?
• (2023-12-30) ALERO INYANG: I don't understand this... Rikaikun doesn't work at all! Nothing happens when I hover over Japanese text. No pop-up definition or reading, no text-to-speech, even though I enabled it in the Extension options. I thoroughly examined all the settings, and they remain default except for these: I've selected "On click" for site access, I've pinned the extension to my toolbar, I've enabled text-to-speech. It used to work well when I installed it the first time, but then it stopped abruptly. I removed it and tried reinstalling it to see if the same thing would happen again, but it didn't even work at first this time. I don't think the changes that I've made could interfere with the extension's functionality, and I've turned off my one other extension (I don't know what else could be interfering). I've tried using a shortcut to activate rikaikun; as I expected, it changes nothing. I'm really not sure what else the problem could be because I made sure that I didn't accidentally use a shortcut. I've looked at other similar extensions like yomichan, yomitan, and rikaitan, but I was hesitant to try them because my experience with rikaikan. I very breifly installed yomichan since I read only good reviews. I couldn't customize it before using though, like I can with rikaikun (which is much more straightforward), so I immediately removed it. Has anyone solved this problem or figured out the cause? Is there anyway I can fix this? I have even tried highlighting the text instead of just hovering over it. Could it be an update that I haven't installed yet for Chrome( There is that...)? :( (TLDR: Rikaikun is not working at all (legit) and i can't find a cause or solution. It is very frustrating because the extension is practically useless this way.)
• (2023-12-07) Alef Gabriel Torres Strogulski: Hello Extension Creator, wouldn't it be possible to use an AI API to translate the text into other languages?
• (2023-10-11) Ioan Jivan: I love it, but I can't find a way to make it start when I start the browser.
• (2023-10-11) Ioan Jivan: I love it, but I can't find a way to make it start when I start the browser.
• (2023-08-31) highwizard: Could have more languages besides english. I have to use the translator anyway, so it's not useful.
• (2023-08-31) highwizard: Could have more languages besides english. I have to use the translator anyway, so it's not useful.
• (2023-04-18) Anthony Guillo: Doesn't work at all...But maybe we need to do something about settings but not information about it so useless.
• (2023-04-18) Anthony Guillo: Doesn't work at all...But maybe we need to do something about settings but not information about it so useless.
• (2023-03-22) しらゆき_: 要是能有日语的解释（而不是英语）就好了，更贪婪地说，想要可以导入辞典的功能
• (2023-02-01) Marionic: We need Chinese. 我们需要中文。 中国語が必要です。
• (2022-11-21) Richard Lee: I have to click the icon every time to turn it on. Can it automatically turned on or always on? 每次都要點圖示才能啟用，可以一直開著嗎?
• (2022-11-20) Amelia SH: This extension is perfect but I notice some bugs: 1. It gets on the way whatever japanese text I am typing exp when the cursor is near the text 2. It often turns on the "hide definitions and show only reading" by itself. It's not like there is shortcut to it, right??
• (2022-11-20) Amelia SH: This extension is perfect but I notice some bugs: 1. It gets on the way whatever japanese text I am typing exp when the cursor is near the text 2. It often turns on the "hide definitions and show only reading" by itself. It's not like there is shortcut to it, right??
• (2022-11-18) Nonthawit Sudhisongkroh: Love the app. but keyboard shortcut without clicking the icon would be super useful. Thank you.
• (2022-11-18) Nonthawit Sudhisongkroh: Love the app. but keyboard shortcut without clicking the icon would be super useful. Thank you.
• (2022-09-26) Flower Ss: 这个插件太强了！希望能追加中文！
• (2022-09-04) Moebits: Good for reading difficult Japanese words on the fly, but not that great for studying to put words into your long-term memory because there is no integration with Anki (AnkiConnect). If you can add Anki integration I would use this over Yomichan since the popup design is prettier.
• (2022-09-04) Moebits: Good for reading difficult Japanese words on the fly, but not that great for studying to put words into your long-term memory because there is no integration with Anki (AnkiConnect). If you can add Anki integration I would use this over Yomichan since the popup design is prettier.
• (2022-06-20) Waris Ruzi: I use this extension on a daily basis. It's extremely handy, and I enjoy it.
• (2022-06-20) Waris Ruzi: I use this extension on a daily basis. It's extremely handy, and I enjoy it.
• (2022-05-20) C K: 什麼都沒有跑出來啊…
• (2022-03-30) Milena Krzemińska: cool but maybe pls change the color of the english translations like i mean the text color because it blends w the blue background and i hardly can read it
• (2022-03-30) Milena Krzemińska: cool but maybe pls change the color of the english translations like i mean the text color because it blends w the blue background and i hardly can read it
• (2022-03-30) Jonathan B: I love this extension. Its super helpful. If you could get it to work on PDF files while in chrome, that would take away my only complaint.
• (2022-03-30) Jonathan B: I love this extension. Its super helpful. If you could get it to work on PDF files while in chrome, that would take away my only complaint.
• (2022-03-15) Rumi Hira: Thank you for making wonderful tool. I always introduce this function to Japanese Teacher who teach student with dyslexia. It works great.