Launching a SaaS?·Collect waitlist signups before you build — before.run
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regex.to
SandboxPatternsDetectDocs
Phone
en-US
#phone
#us
#american
#mobile

Phone — US

Matches a US phone number in various formats: (555) 867-5309, 555-867-5309, 5558675309, or with +1 country code.

✓ US contact forms✓ Customer registration✓ Address books
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Test String
4 matches
(…)?Group #1— Capturing group — captures matched text for reuse or extraction — repeated zero or one time (optional) · ? — zero or one time (optional)
\+\+— \+ — escaped character '+'
11— '1' — literal character
[…]?Character class […]— Matches any single character listed in this set — repeated zero or one time (optional) · ? — zero or one time (optional)
\(?\(— \( — escaped character '(' — repeated zero or one time (optional) · ? — zero or one time (optional)
\d{3}digit— \d — digit (0–9) — repeated exactly 3 times · {3} — exactly 3 times
\)?\)— \) — escaped character ')' — repeated zero or one time (optional) · ? — zero or one time (optional)
[…]?Character class […]— Matches any single character listed in this set — repeated zero or one time (optional) · ? — zero or one time (optional)
\sspace— \s — whitespace (space, tab, newline…)
\-\-— \- — escaped character
\d{3}digit— \d — digit (0–9) — repeated exactly 3 times · {3} — exactly 3 times
[…]?Character class […]— Matches any single character listed in this set — repeated zero or one time (optional) · ? — zero or one time (optional)
\sspace— \s — whitespace (space, tab, newline…)
\-\-— \- — escaped character
\d{4}digit— \d — digit (0–9) — repeated exactly 4 times · {4} — exactly 4 times
Pattern: 48 charsInput: 54 chars
100% client-side · private

✓ Valid Examples

  • (555) 867-5309
  • 555-867-5309
  • +1 555 867 5309
  • 5558675309

✗ Invalid Examples

  • +44 20 7183 8750
  • 123-456-789
  • 555-867-530