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10ten Japanese Reader

10ten Japanese Reader

Hi fellow Japanese reader! Formerly known as Rikaichamp, this browser extension lets you look up Japanese words with the hover of a mouse or tap of a screen.

Follow @10tenstudy automated test status

Table of Contents

Installing

Features

  • Pitch accent information

    Screenshot showing pitch accent information
  • Support for non-English dictionaries

    Screenshot showing German translation
  • Dictionaries that update automatically twice a week by fetching just the updated entries

  • Easy to read dictionary entries

    Screenshot showing how definitions are grouped by part-of-speech
  • Automatic translation of Japanese-era years into Gregorian years (e.g. 昭和56年、令和元年、平成三十一年)

    Screenshot showing translation of 明治四十二年 into 1909年
  • Automatic translation between 畳/帖 measurements and square meters (e.g. 四畳半、12.6 帖、25 平米、6m2)

    Screenshot showing translation of 四畳半 into 7.29 square meters
  • Recognition of a wide range of grammatical forms (e.g. irregular inflections of する-verbs like 罰せられる, irregular verbs like いらっしゃいます, continuous forms like 食べてた, ん as a negative form like 分からん、知らん, words with ー like じーちゃん、頑張ろー、そーゆー, ぬ verbs, とく・どく forms like 買っとく, causative passive, させる for verbs ending in す e.g. 起こさせる)

  • Automatic preview of name entries when there is a better match in the name dictionary

    Screenshot showing 小池百合子 being automatically looked up from the names dictionary
  • Handling of a wide range of characters including ㋕, ㌀, ㋿, 𠏹沢, 8月, B級グルメ, オーサカ

    Screenshot showing recognition of 弾道㋯㋚㋑㋸防衛 (弾道ミサイル防衛) Screenshot showing recognition of ㍿ (株式会社)
  • Localized into Japanese (so you can study Japanese while you study Japanese!) and Simplified Chinese

    Screenshot showing various parts-of-speech and other information translated into Japanese
  • Prioritization of common matches

  • Support for displaying romaji

  • Copy feature that allows selecting which entry and in what format to copy to the clipboard

    Screenshot showing 河川敷 being selected and the various formats available for copying
  • Smart popup positioning

  • Support for vertical text and text in SVG images

  • Minimal memory usage

  • Kanji data for Kanji kentei, Conning references, updated educational levels, heavily reworked kanji components etc.

    Screenshot of kanji view
  • Intuitive settings window

    Screenshot of options window
  • Isolation of styles so that the popup always looks correct

  • Handling of ruby text in YouTube

Usage

By default, you can enable the 10ten Japanese Reader by either:

  • Pressing the toolbar button (you may need to add it to the browser toolbar yourself in some browsers)
  • Pressing Alt+R
  • Choosing to enable it from the context menu

Alternatively, a lot of users find it helpful to have the extension permanently enabled but configured to only show the pop-up when either Alt or Ctrl is pressed.

The other keys are as follows:

Action Key
Switch dictionary (words → kanji → names) Shift / Enter
Show kanji results only Shift (disabled by default)
Toggle display of definitions d (disabled by default)
Move the popup up or down j / k (disabled by default)
Enter copy mode c
(Copy mode) Copy entry e
(Copy mode) Copy tab-separated fields y
(Copy mode) Copy word/kanji w
(Copy mode) Select next entry c

Building a release from source

You may also build the add-ons using a source package from the Releases page and running the following commands:

export RELEASE_BUILD=1
pnpm install
pnpm package:firefox
# Or `yarn package:firefox` for versions 0.20.0 and earlier
# Or `yarn package` for versions 0.5.8 and earlier

(Note that you may ignore the .js files associated with each release. These are published simply to provide a public URL for each version of the source files to associating stack traces from error reports.)

The above builds the package for Firefox. Use pnpm package:chrome to build the Chrome package, pnpm package:edge for Edge, pnpm package:safari for Safari, or pnpm package:thunderbird for Thunderbird.

Note: For versions prior to and including 0.5.5 pnpm install will try to install husky but fail so you will need to run pnpm install --ignore-scripts.

To build the latest trunk version please see CONTRIBUTING.md.

Contributing

Please see CONTRIBUTING.md.

Contributors

Thank you to everyone who has contributed including the following people (emoji key):

SaltfishAmi
SaltfishAmi

💻 🌍
Claudio Freitas
Claudio Freitas

💻
Kala-J
Kala-J

💻 🔣
ispedals
ispedals

💻
YUKI
YUKI "Piro" Hiroshi

🌍
kikaxa
kikaxa

💻
Edho Arief
Edho Arief

💻
Erek Speed
Erek Speed

💻
Jamie Birch
Jamie Birch

💻 🤔 🐛 📦
Martin Böhm
Martin Böhm

🐛 🤔
nicolasmaia
nicolasmaia

🐛 🤔
Jack Arrington
Jack Arrington

💻 📖
Eneas
Eneas

💻
Phong Phan
Phong Phan

💻
Mai Lavelle
Mai Lavelle

💻

This project follows the all-contributors specification. Contributions are very welcome!