Full Width Convert tool

The Full Width Convert tool maps characters between their half-width and full-width forms. In CJK text, ASCII letters, digits, and punctuation are often written in full-width forms so they align visually with ideographs; this tool converts in either direction. The core mapping covers ASCII printable characters (!–~, full-width range ！–～) and the space (regular space ↔ ideographic space).

IDfullwidth-convert

SourceBuilt-in

Categorytext-processing

Cardinalitymonolingual

Tagstext-processing

Parameters

Parameter	Type	Default	Description
`applySource`	boolean	false	Apply to source text
`applyTarget`	boolean	true	Apply to target text
`includeKatakana`	boolean	false	Also convert Japanese Katakana and associated punctuation to half-width forms
`includeLLS`	boolean	false	Also convert characters from the Letter-Like Symbols block to character sequences
`includeSLA`	boolean	false	Also convert Squared Latin Abbreviations from the CJK Compatibility block to non-CJK character sequences
`mode`	string	to-half	Conversion direction between half-width and full-width characters
`targetLocale`	string		Target locale for processing

Configure these parameters interactively and copy the flow-step YAML on the Tool Reference.

Examples

Convert full-width to half-width

Normalize full-width Latin characters in the target to ASCII.

mode: to-half
applyTarget: true
targetLocale: ja-JP

Convert half-width to full-width

Render ASCII characters in their full-width forms.

mode: to-full
applyTarget: true
targetLocale: ja-JP

Processing notes

Operates on translatable blocks only; non-translatable blocks pass through unchanged.
The core mapping covers ASCII printable characters and the space; the extended-block toggles add further character ranges.

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