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regex.to
SandboxPatternsDetectDocs
Identity
pt-BR
#cnpj
#brazil
#company
#business

Brazilian CNPJ

Matches a Brazilian CNPJ (Cadastro Nacional da Pessoa Jurídica) — company identifier in formatted or unformatted form.

✓ Brazilian B2B forms✓ Invoice validation✓ Company registration
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Test String
2 matches
\d{2}digit— \d — digit (0–9) — repeated exactly 2 times · {2} — exactly 2 times
\.?\.— \. — 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)
\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)
\d{4}digit— \d — digit (0–9) — repeated exactly 4 times · {4} — exactly 4 times
-?-— '-' — literal character — repeated zero or one time (optional) · ? — zero or one time (optional)
\d{2}digit— \d — digit (0–9) — repeated exactly 2 times · {2} — exactly 2 times
Pattern: 36 charsInput: 33 chars
100% client-side · private

✓ Valid Examples

  • 11.222.333/0001-81
  • 11222333000181

✗ Invalid Examples

  • 11.222.333/0001
  • 11.222.333/0001-8
  • AB.222.333/0001-81