wanakana
Utility library for converting between Kanji, Hiragana, Katakana, and Romaji
hepburn
Convert Japanese Hiragana and Katakana script to, and from, Romaji using Hepburn romanisation
kuroshiro
kuroshiro is a Japanese language library for converting Japanese sentence to Hiragana, Katakana or Romaji with furigana and okurigana modes supported.