Ajax IME

Ajax IME
http://ajaxime.chasen.org/

[Japanese]

"Web-based Japanese input method ... Must-have item"

ATOK and MS-IME Japanese ver. are no longer needed. You can input Japanese characters, words and phrases on any PC in the world by using only web browser.
Ajax IME is the web base service for inputing Japanese. Only accessing this web site and clicking the ON/OFF switch, You can input hiragana and convert to kanji as well as using ATOK or MS-IME.
Using the bookmarklet, You can use this input method on any other website.