Phone Number Regex Tester
Validate phone numbers with regular expressions
^\+?1?[-.\s]?\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}$Regex Flags
No matches found
Pattern Explanation
^\+?1?[-.\s]?\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}$No explanation available
About Phone Regex Patterns
Phone number formats vary dramatically worldwide. US numbers alone can appear as (555) 123-4567, 555-123-4567, 5551234567, +1 555 123 4567, and many other variations. International numbers add country codes and different length requirements.
Our phone regex tester helps you build patterns that match your target formats while being flexible enough for real user input variations.
Why Validate Phones?
Phone validation improves data quality and user experience. Users enter numbers in whatever format feels natural—your validation should normalize these inputs rather than reject them for formatting differences.
Consider: is "555.123.4567" really invalid, or just formatted differently? Flexible regex patterns capture the underlying number while allowing format variations users naturally type.
Building the Pattern
Phone regex typically handles:
• Country code: optional +1 or +44 prefix • Separators: spaces, hyphens, dots, or none • Grouping: (555) or 555 for area codes • Length: varies by country (10-15 digits typical)
Start with the strictest requirements, then add optional groups for flexibility. Strip non-digits for storage, keep formatting for display.
Common Use Cases
- Contact form validation
- User profile phone fields
- Data import and cleaning
- SMS/calling feature inputs
Pro Tip
Store phone numbers as E.164 format (+15551234567) internally. Use regex for input flexibility, then normalize to a consistent storage format.
Other Regex Patterns
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