Regex PatternsPracticalCheat Sheet
2026 Verified Regex Patterns for Emails, Phone Numbers (60+ Countries) & URLs with TLDs
Copy-paste production-ready regex for email (RFC-compliant, no false positives), international phone numbers (E.164, spaces, dashes), and modern URLs (.ai, .io, .app, .xyz). All patterns tested live in the Korelyy Regex Tester.
By Korelyy Team
6 min Read
§1 Email Regex (RFC 5322 Compliant, Low False-Positive)
^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$§2 Phone Number Regex (E.164 + Human-Readable Formats)
India (+91): 10-digit mobile, optional 91 / +91 / 0 prefix, spaces/dashes allowed
^(?:\+?91[-.\s]?)?(?:0)?[6-9]\d{9}$China (+86): 11-digit mobile, starts with 1[3-9], optional +86 / 86 / 0 prefix, spaces/dashes allowed
^(?:\+?86[-.\s]?)?(?:0)?1[3-9]\d{9}$USA / Canada (+1): 10-digit NANP, optional +1, parentheses around area code
^(?:\+?1[-.\s]?)?\(?[2-9]\d{2}\)?[-.\s]?[2-9]\d{2}[-.\s]?\d{4}$§3 URL / Domain Regex (Modern TLDs: .ai, .io, .app, .xyz)
^(?:https?:\/\/)?(?:www\.)?[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9]\.[a-zA-Z]{2,}(?:\/[^\s]*)?$FAQ: Frequently Asked Questions
What regex validates emails?
Use basic patterns or Korelyy's Regex Tester with pre-built RFC 5322 compliant patterns for 60+ countries.
How to validate international phone numbers?
Use country-specific regex patterns. Korelyy includes verified patterns for US, UK, China, India and 60+ countries.
What regex matches URLs?
Use patterns for HTTP/HTTPS, subdomains, ports, paths, query strings, and all ICANN TLDs.