Create email validation patterns at basic, standard

Check whether an email address has a conventional local-part and domain shape.

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ToolEmail Regex
Input
Output
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How it works

The pattern checks a simplified local-part, at sign, and dot-separated domain labels with whole-input anchors. It validates syntax only and does not query DNS or deliver mail.

  • Common dot-atom syntax is practical for forms.
  • Obsolete quoted RFC forms are intentionally outside the simple pattern.

Worked example

Standard email address validation pattern
Generate a standard email validation regex pattern
Input
											standard
Output
												Email Regex (standard):

^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$

Standard email validation: alphanumeric with common special chars

Usage: new RegExp(pattern) or /pattern/i for case-insensitive

When to use this

Signup forms, contact imports, and mail API prechecks use email patterns.

Edge cases

  • Plus tags such as [email protected] fit dot-atom syntax.
  • Quoted local parts may be RFC-valid but fail the simplified pattern.
  • A valid shape does not prove DNS or mailbox existence.

References