Add furigana to Japanese text in Google Sheets™ with one click.

Select some cells and choose Add furigana. Each kanji word gets its hiragana reading in gray brackets, like this:

東京[とうきょう]は日本[にほん]の首都[しゅと]です。

To take the readings out again, choose Remove furigana.

Great for Japanese learners, teachers, and anyone making study sheets or vocabulary lists.

How to start:
1. Select cells with Japanese text
2. Click Extensions > Furigana > Add furigana to selection

No API key or sign-up needed.

Privacy:
Readings come from a Japanese dictionary on the add-on's own server. No AI is used. Your text is sent over HTTPS, is not stored or logged, and is never shared or used to train AI.

Some words have more than one reading, so please check important text.

Free and open source: github.com/ng-karen/furigana-sheets

Google Sheets™ is a trademark of Google LLC.