Japanese IO

https://www.japanese.io/

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4.5 (

67 ratings

)

Extension Workflow & Planning 10,000 users

10 support issues

Maria Puerta

Sep 27, 2025

Impossible to active jio or access the website

The problem began yesterday 26 September, even if I press the button, Japanese IO does not activate and the official website of Japanese IO does not open, is not accesible. Please check this problem, since Japanese IO is a very important tool to read Japanese, thanks in advance

Kayla Keys Caldwell

Sep 20, 2025

Cannot activate extension

When trying to get the icon to turn on to use the program the icon never activates indicating that the page is being read. Mouseover nor click will work, either so I do not think its an issue of the icon not working but the application as a whole. Going to the "https://www.japanese.io/" site leads to an error '502 Bad Gateway - nginx'

Maria Puerta

Sep 10, 2025

Japanese IO extension is not working, the button does not go ON

I have been using Japanese IO extension for months and was very happy. Now I have Windows 11 Pro and since yesterday it is impossible to active Japanese IO. The installation is properly made but the button does not go ON, even if I press it with the mouse as usual. Is there any problem at the moment and are you working on it? Thanks in advance

Brent Paragili

Feb 25, 2025

extension not working

already purchased ,yet it keep prompting me to upgrade

Kaori Yagi

Mar 13, 2023

Stop working on Chrome and Edge.

I always recommended Japanese IO to Japanese learners of my class. However, the extension stopped working. I think it has been more than a month.

Rorich Beau

Nov 23, 2022

it doesn't work.

I payed for a month, however I can't visit your homepage right now, and the program isn't working either. I'm dissatisfied with you.

Law Thirtyfour

Nov 29, 2019

Need to turn on each tim

It seems like the translations stops every time i go to a new page/tab. I need to click the icon every time before I can just mouse over things to see translations. Is this how it's supposed to work? If so i'd suggest an option to have it automatically go on.

Willwe So

Jul 31, 2019

popup

No popup with English explanation any more.
Before that, popup works well on small browser window but failed on larger window (i.e. max window ).All other extensions' inference are excluded.
Re-active Japanese IO doesn't help...

Hanako williams

Jun 7, 2019

Anki downloads

Hi, the app is not allowing me to download my starred words in anki format anymore - which I believe to be a key part of the app, stating that there is a server problem? Is it possible to get this fixed. Thank you so much.

Titia Kool

May 18, 2018

Text decoration

For some reason the app won't decorate japanese text anymore. It used to work before that time, but know I can't look up the kanji anymore