Launching a SaaS?·Collect waitlist signups before you build — before.run
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regex.to
SandboxPatternsDetectDocs
Phone
en-GB
#phone
#uk
#british
#mobile

Phone — UK

Matches UK phone numbers in standard formats, starting with 0 or +44.

✓ UK contact forms✓ Address validation✓ CRM systems
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Test String
4 matches
(…)Group #1— Capturing group — captures matched text for reuse or extraction
\+\+— \+ — escaped character '+'
44— '4' — literal character
44— '4' — literal character
\s?space— \s — whitespace (space, tab, newline…) — repeated zero or one time (optional) · ? — zero or one time (optional)
||— | — alternation: matches expression on left OR right
00— '0' — literal character
(…)Group #2— Capturing group — captures matched text for reuse or extraction
\d{2,4}digit— \d — digit (0–9) — repeated between 2 and 4 times · {2,4} — between 2 and 4 times
\s?space— \s — whitespace (space, tab, newline…) — repeated zero or one time (optional) · ? — zero or one time (optional)
\d{3,4}digit— \d — digit (0–9) — repeated between 3 and 4 times · {3,4} — between 3 and 4 times
\s?space— \s — whitespace (space, tab, newline…) — repeated zero or one time (optional) · ? — zero or one time (optional)
\d{3,4}digit— \d — digit (0–9) — repeated between 3 and 4 times · {3,4} — between 3 and 4 times
||— | — alternation: matches expression on left OR right
\d{10}digit— \d — digit (0–9) — repeated exactly 10 times · {10} — exactly 10 times
Pattern: 47 charsInput: 55 chars
100% client-side · private

✓ Valid Examples

  • +44 20 7183 8750
  • 020 7183 8750
  • 07700 900123
  • 07700900123

✗ Invalid Examples

  • +1 555 867 5309
  • 123456
  • 00000000000