Convert tools

Hiragana / Katakana Converter

Convert hiragana and katakana in either direction, including halfwidth katakana. Copy the result without uploading text.

Convert in your browser · No sign-up

Kanji readings and romaji are not generated. Small kana and voiced marks are preserved; halfwidth katakana is normalized first.

Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.

How to use

  1. Convert hiragana and katakana in either direction, including halfwidth katakana. Copy the result without uploading text.
  2. Choose the mode or options, then run the tool.
  3. Review the result, then copy or download the TXT file.

Example

こんにちは → コンニチハ

Details and limitations

Kanji readings and romaji are not generated. Small kana and voiced marks are preserved; halfwidth katakana is normalized first.

Text stays in your browser; it is not sent to a conversion server.

FAQ

Hiragana / Katakana Converter — What are the supported inputs and limits?

Kanji readings and romaji are not generated. Small kana and voiced marks are preserved; halfwidth katakana is normalized first.

Format references

Tool page updated: