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How to Turn Half-Width Katakana into Full-Width

Published: Oct 19, 2026 | Updated: Oct 19, 2026 | About (Japanese)

Key points
  • Paste the text
  • Choose half-width kana to full
  • Copy the result

Half-width katakana can garble in some environments.

Steps

  1. Paste the text into "Before" of Convert Full-Width, Half-Width, Hiragana and Katakana.
  2. Choose "Half-width katakana → full-width katakana".
  3. Copy the result.
Voiced and semi-voiced marks are converted together.
Use "Convert Full-Width, Half-Width, Hiragana and Katakana" (free)

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