Regex Editor & Tester

This regex matches characters in the Unicode blocks CJK Symbols and Punctuation (U+3000-U+303F) and Halfwidth and Fullwidth Forms (U+FF00-U+FFFF). It captures Japanese/Chinese punctuation like 。、「」, as well as fullwidth forms of Latin letters, digits, and symbols commonly used in East Asian text. Use it to identify or extract fullwidth characters, detect mixed-width text, or preprocess content for normalization.