# FooSoft/yomichan

Japanese pop-up dictionary extension for Chrome and Firefox.

Repository: https://github.com/FooSoft/yomichan
Canonical: https://ross.abutalabs.com/products/yomichan
Homepage: https://foosoft.net/projects/yomichan
Language: JavaScript
License: NOASSERTION
License Family: other
Topics: anki, chrome, japanese, dictionary, language, translation, yomichan, firefox, addon, extension, epwing, flashcards, dictionaries, anki-deck, japanese-language
Archived: true
Last push: 2023-02-25T20:43:21+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3821, "days_push": 1285, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1143, forks 392 (observed 2026-08-28T04:03:45.052646+00:00)

## What it is
Yomichan is a browser extension for Chrome and Firefox that turns the browser into a Japanese pop-up dictionary, showing interactive definitions, kanji stroke order diagrams, and audio playback for hovered text. It integrates with Anki via AnkiConnect to automatically create flashcards and supports multiple dictionary formats including EPWING.

## Use cases
- look up japanese words while reading web pages
- create anki flashcards from japanese text automatically
- view kanji stroke order diagrams in the browser
- import epwing dictionaries for japanese lookup
- play audio pronunciation for japanese dictionary entries
- build japanese reading literacy with a browser dictionary

## When to choose
- you read japanese websites and want instant in-page word lookup
- you want seamless anki flashcard creation while reading
- you need kanji information and stroke diagrams on hover
- you want to use custom or epwing dictionaries in the browser

## When to avoid
- you need an actively maintained extension - the project is sunset and no longer maintained
- you need lookup for languages other than japanese
- you want a standalone dictionary app outside the browser
- you use browsers other than chrome or firefox

## Facets
- artifact type: plugin
- maturity: abandoned
- function: search-engine, nlp, gui
- domain: education, browser-extensions
- platform: browser, browser-extension, cross-platform
- tags: japanese, popup-dictionary, anki-integration, language-learning, firefox-addon, chrome-extension, epwing, flashcards, kanji, translation, natural-language-processing, localization

## Member repositories
- FooSoft/yomichan (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:45.052646+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:34:53.979370+00:00, confidence not recorded.
  - readme: https://github.com/FooSoft/yomichan (fetched 2026-08-28T04:03:45.052646+00:00, sha 08dd6e13ee1e)
- Data as of 2026-08-30T08:39:29.467469+00:00.