Full-width to Half-width
Convert full-width letters, digits, and common punctuation to half-width. Useful for cleaning text from Japanese input methods or older documents so numbers and code-like strings are easier for other tools to read.
How to use
- Conversion covers full-width alphanumerics and common symbols; Chinese characters and kana are left as they are.
- Convert to half-width before working with code or URLs to avoid characters that other tools fail to recognise.
FAQ
Are Chinese punctuation marks changed too?
The tool mainly handles full-width alphanumerics and common symbols; whether Chinese commas and periods change depends on the character range. Check the result and replace by hand if needed.
Do spaces change as well?
A full-width space may become a half-width space, which can affect alignment. For layout-sensitive content, review the spacing after conversion and add spaces back where necessary.
Further reading