HomeFullwidth/Halfwidth Converter

Fullwidth/Halfwidth Converter

Online fullwidth/halfwidth converter supporting bidirectional character width conversion



Documentation

Overview

This converter switches text between fullwidth and halfwidth forms, helping normalize mixed-language content for editing, cleanup, and formatting consistency.

Core Concepts

  • Halfwidth characters usually take one-byte width (letters, digits, common symbols)
  • Fullwidth characters usually take two-byte width and align closer to CJK text width
  • The difference mainly affects Latin letters, numbers, punctuation, and spaces

Key Features

  • Fullwidth to halfwidth conversion
  • Halfwidth to fullwidth conversion
  • Support for letters, digits, spaces, and common punctuation
  • One-click copy for the converted output

How to Use

  1. Enter the source text
  2. Click Fullwidth to Halfwidth or Halfwidth to Fullwidth
  3. Review and copy the result

Tips

  • Use halfwidth for commands, code, and parameters
  • Use fullwidth when visual alignment with CJK text is preferred