Japanese / Reading
Furigana Generator: Editable Japanese Kanji Readings
Paste Japanese text to add hiragana or katakana readings above kanji. Edit individual readings and export HTML ruby, bracket notation, Aozora Bunko notation or plain hiragana in your browser.
Furigana Generator: Editable Japanese Kanji Readings: Uses kuromoji 0.1.2 and its bundled IPADIC dictionary to analyse Japanese text. Kana segments align each word's reading with its kanji runs, so 食べる becomes 食(た)べる and 取り消す becomes 取(と)り消(け)す. Every recognised kanji word is eligible for annotation; there are no school-grade filters. Tokens without usable readings or reliable alignment remain unchanged. Runs 100% locally in your browser with zero server file uploads.
- Category
- Text tools
- Runs
- In your browser
- Cost
- Free · no sign-up
- Availability
- Ready to use
Runs entirely in your browser
Readings come from a dictionary-based morphological analyser. Names, rare words and context-dependent readings can be wrong, for example 今日 (きょう / こんにち) and 生 (なま / せい). Click any reading in the preview to edit it.
The dictionary loads on your first conversion. Your text stays in this browser.
Engine: kuromoji 0.1.2 (Apache-2.0), with the IPADIC dictionary. IPADIC licence · Kuromoji licence
Kuromoji morphological analyser
kuromoji.js 0.1.2 by Takuya Asano and contributors, licensed under Apache-2.0. Project and source: https://github.com/takuyaa/kuromoji.js . The engine performs dictionary-based morphological analysis; readings should be reviewed in context. The distributed licence is available at /data/kuromoji/LICENSE-2.0.txt.
IPADIC dictionary and licence
The package bundles mecab-ipadic-2.7.0-20070801, copyright 2000–2003 Nara Institute of Science and Technology, with NAIST and ICOT terms. Redistribution must retain the copyright notice and licence paragraphs, including the ICOT NO WARRANTY provisions. The complete upstream notice is shipped at /data/kuromoji/NOTICE.md. Upstream notice: https://github.com/takuyaa/kuromoji.js/blob/master/NOTICE.md . IPADIC has its own licence and is not covered by kuromoji's Apache-2.0 licence.
How to use it
- Paste up to 20,000 characters and choose hiragana or katakana readings.
- Convert the text, then click a ruby in the preview to correct its reading.
- Choose an output format, copy it or download an HTML page or text file.
Privacy & limitations
Your text and reading edits stay in your browser. On first conversion, the tool loads about 17.8 MB of dictionary files from this site's own origin. Nothing is uploaded and no external font service is used.
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Frequently asked questions
Are the readings always correct?
No. This is a dictionary-based morphological analyser. Names, rare words and context-dependent readings can be wrong, such as 今日 (きょう or こんにち) and 生 (なま or せい). Check the preview and click any annotated word to edit its reading.
What do the downloads contain?
HTML output downloads as a minimal standalone page with ruby markup and system fonts. Brackets, Aozora Bunko notation and plain hiragana download as UTF-8 text. The Copy button copies the selected output; for HTML this is the escaped ruby fragment.
Do edits survive changing the output format?
Yes. Preview edits feed all output formats and downloads. Changing reading style converts edited kana between hiragana and katakana. Converting again or changing the source text resets the annotations.
Why are some words left unchanged?
Unknown words, missing dictionary readings, numbers, Latin text and tokens whose kana cannot be aligned are preserved. Plain hiragana converts recognised kana and kanji readings, preserves punctuation and spacing, and always uses hiragana regardless of preview style.
Free tool · runs in your browser · no account required