10ten Japanese Reader (Rikaichamp)

10ten Japanese Reader (formerly Rikaichamp) is a Chrome extension that allows users to quickly translate Japanese text by simply hovering the mouse pointer over words. It displays dictionary definitions along with pitch accent and kanji stroke order animations to aid language learners.

Key features include automatic dictionary updates twice weekly, support for non-English dictionaries, translation of Japanese yen into other currencies, numbers, era years, unique Japanese measurements, and shogi notation. The extension handles diverse grammatical forms and characters, offers romaji transliteration, and supports vertical text and SVG content. Designed for simplicity, speed, and low memory usage, 10ten Japanese Reader is localized in Japanese and Simplified Chinese, making it a versatile tool for all levels of Japanese learners.