Hiragana ↔ katakana converter

Convert Japanese text between hiragana and katakana without touching kanji or other characters.

Up to 100,000 characters. Other scripts are kept as they are.

Direction

Converted in this browser. Nothing is sent anywhere.

Only full-width kana are converted — kanji, romaji, and the long-vowel mark ー stay unchanged. Half-width katakana (ｶﾀｶﾅ) is a different encoding and is left as-is.

How to use

  1. Paste the text.
  2. Pick the direction.
  3. Convert and copy the result.

What it supports

Full-width kana only — kanji, romaji, and the ー mark are unchanged; half-width katakana is left as-is.

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