I've been typing more stuff out in japanese and while i cant understand a lot of the kanji yet i'd rather look at kanji with furigana over hiragana.

Open office has furigana functionality, however you have to manually type the furigana and it doesnt seem to have functionality where you can type the hiragana, select the kanji, and have the furigana appear automatically (which should be possible since you just typed the pronunciation a second ago).

Anyone know of such a program?