Regex Tester & Validator

This regex validates email addresses with a structured local part and domain. The local part allows lowercase letters, digits, underscores, plus signs, hyphens, and dots (e.g., first.last+tag). The domain allows lowercase letters, digits, underscores, and hyphens with multiple subdomain levels, requiring a TLD of at least 2 letters. Useful for form validation, data sanitization, and input verification in JavaScript applications.