Generate a test Brazil Cadastro Nacional da Pessoa Jurídica
A Brazilian CNPJ is a fourteen-digit company number formatted 00.000.000/0000-00 with two MOD-11 check digits. These test values are synthetic but carry valid check digits.
Synthetic · not collision-guaranteed Validate a number →
60.599.267/0001-79
Synthetic CNPJ with valid check digits; Brazil publishes no reserved test range.
Format specification
| Identifier | Cadastro Nacional da Pessoa Jurídica (CNPJ) |
|---|---|
| Country | 🇧🇷 Brazil |
| Format | 00.000.000/0000-00 |
| Length | 14 characters |
| Checksum | MOD 11 |
| Example | 72.913.633/0001-00 |
| Safe strategy | Synthetic |
| Data quality | Verified against sources |
Validation regex
Matches the canonical value — strip separators and uppercase first: value.replace(/[^A-Za-z0-9]/g, '').toUpperCase()
^\d{14}$ References
Common questions
Will these pass my validation?
Yes — they are well-formed Cadastro Nacional da Pessoa Jurídica values (00.000.000/0000-00) and pass standard format checks, including the MOD 11 checksum.
Could one belong to a real person?
These are synthetic values. They are format-valid but not drawn from a guaranteed reserved range, so use them only for testing.
Can I generate many at once?
Increase the count, or use the free API and CSV/JSON export for large datasets.
For software testing only. These numbers are synthetic and must never be used
for real-world identification, applications, or to impersonate anyone.