This addon is for Japanese chat messaging. Show Hiragana text from Romaji.

[Tomill] konnichiwa
  to
[Tomill] konnichiwa (こんにちわ)

• Requires Unicode font.
• This addon don't touch outgoing message.
• You can set default enable/disable setting in Menu > Interface > Addon > Romaji Translator.
• Type /romakana off command to temporary disable this addon.
• Type /romakana on to enable again.

Nihongo setumei page（日本語の説明ページ）

Changes:

1.9.0

• update for 9.0.x, Shadowlands

1.8.0

• update for 8.0.x
• skip the word beginning with uppercase. Pandaria ha panda no shima => Pandaria は ぱんだ の しま
• added w support. try this => ukeruwww
• removed moo rule for Tauren (sorry). now もお.
• renamed "Romaji Translator" from "Romaji2kana" :D