Regex Tester & Validator

Matches internationalized email addresses for HTML5 <input type="email"> pattern validation. Requires a local part of 1-64 chars (per RFC limits), an @ symbol, a domain, a literal dot, and a TLD of at least 2 chars. The character class permits word chars, . + / = apostrophe, hyphen, whitespace, plus Unicode scripts like Latin Extended, Cyrillic, Arabic, Devanagari, Bengali, Hangul, and CJK. With gm flags, it validates multiple emails across separate lines.