Pinyin ⇄ Zhuyin
Type pinyin to get zhuyin, or zhuyin to get pinyin.
Pinyin tones
Try:
Pinyin typed together is split into as few syllables as possible: xian is ㄒㄧㄢ, one syllable. For two, write xi'an (ㄒㄧ ㄢ).
Pinyin without tones gives zhuyin without tone signs, and zhuyin with no sign is first tone, so ni hao comes back as nī hāo.
m, n, ng and hm, the readings of 呣 and 嗯, have no zhuyin here and stay in letters.