Japanese IO

Helps you read Japanese text

Japanese IO - Chrome Extension for Reading Japanese

Japanese IO is a Chrome extension designed to enhance the reading experience of Japanese web pages. It provides instant access to dictionary definitions, kanji readings, example sentences, and more. Users can keep track of their word lookups which are stored in their profile for later review and study on the Japanese IO website. A free Japanese IO account is required to use this extension, with optional paid upgrades for advanced features.
Install from Chrome Web Store

Extension stats

Manifest V3
Users: 10,000+
Rating: 4.50
(64)
Version: 0.14.1 (Last updated: 2022-10-12)
Creation date: 2020-06-06
Permissions:
  • contextMenus
  • scripting
  • activeTab
  • background
  • tabs
  • storage
Host permissions:
  • *://*/*
  • http://localhost:5000/
  • https://*.japanese.io/
  • http://commons.wikimedia.org/
  • https://fonts.googleapis.com/
  • https://api.mixpanel.com/
  • https://www.google-analytics.com/
Size: 764.93K
Full description: See detailed description

Other platforms

Not available on Android
Not available on Firefox
Not available on Edge

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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
  • Easy and effective for learning Japanese
  • Quick highlighting of words for furigana
  • Ability to save kanji for later study
  • Combines dictionary and vocabulary notebook functionalities
  • Helpful in improving reading skills
Cons
  • Requires account creation
  • Does not work with Japanese Wikipedia
  • Background operation concerns
  • Some users report functionality issues with specific websites
  • Lack of audio pronunciation for words
Most mentioned
  • Account required for use
  • Highlighted word functionality including furigana
  • Need for audio pronunciation
  • Issues with background operation of the extension
  • Incompatibility with some websites
User reviews
I just tried installing this, but when I left-click on the icon, it just takes me to a new tab and tries to make me sign up for an account?? What kind of "extension" is this!! For _that_ reason, I AM OUT.
by Crystal Identity, 2025-01-03

非常好 之前的扩展直接会表满全页上汉字的读音 而且复制查询的时候,经常会连读音一起翻译 至于收费问题嘛,自然有方法绕过去的
by Oroney, 2023-11-19

u have to make an account
by Luke Gazala, 2023-11-08
View all user reviews

Extension safety

Risk impact

Japanese IO requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • Critical ******* ****** ** *** ********* ******** ********** ************ ************** *************** ************* ********************
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood

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

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* ** * ******** ********* ** ****** *** *****
  • Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details

Promo images

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