Fullwidth/Halfwidth Converter

About Fullwidth & Halfwidth

  • Fullwidth characters occupy the width of two standard characters, commonly used in CJK typesetting. Halfwidth characters are standard ASCII width.
  • Conversion range: ASCII printable 0x21–0x7E (! to ~) maps to fullwidth 0xFF01–0xFF5E. Halfwidth space (0x20) maps to ideographic space 0x3000.
  • CJK characters and non-ASCII symbols are left unchanged.