Pattern
/\b[A-Z]{2}\d{2}[A-Z0-9]{11,30}\b/Sample text
DE89370400440532013000 GB82WEST12345698765432 not-ibanTest this pattern in the editor
IBAN
International bank account numbers (structure only).
Related patterns
Email addresses
Capture local and domain parts from common email shapes.
HTTP(S) URLs
Match protocol, host, and optional path/query.
Strong-ish password
Require length and mixed character classes (demo only).
Usernames
3–16 chars: letter start, then letters, digits, underscore.
E.164 phone numbers
International numbers with leading + and country code.
Russian phone numbers
Common +7 / 8 mobile formats with optional separators.