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Fullwidth-Halfwidth Converter

Convert between fullwidth and halfwidth characters with selective category control, CJK punctuation mapping, and Chinese typography preset

All processing runs locally in your browser. No text is uploaded.

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Free online text locale normalization workbench for fullwidth-halfwidth conversion and CJK-Latin spacing. Width mode selectively converts letters, numbers, ASCII symbols, CJK punctuation, and spaces with a Chinese typography preset and character composition statistics; spacing mode adds or removes spaces between CJK/Kana/Hangul/Bopomofo text and half-width Latin letters or digits while preserving punctuation guards. All processing runs locally in your browser.