Test data generatorsTest Data Generators & Validators
Generate and validate Brazilian CPF and CNPJ check digits, look up postal codes through ViaCEP and create fictitious individual and company test profiles.
Brazilian IDs, postal codes and fictitious test profiles.
1 record(s) available to download. Limit: 1000 per batch.
Access is verified automatically when generating.
Generate CNPJ
Numeric and alphanumeric formats
Validate numeric or alphanumeric CNPJ
Check digit validation for both formats
The validator recognizes alphanumeric input and applies weighted character values to calculate check digits. Validate your integration against its current specifications.
How to use this tool
Test numeric or alphanumeric Brazilian CNPJ identifiers and their check digits. Export batches for integration and data import tests.
Worked example
Compare punctuation and alphanumeric handling in your form. Both formats use 14 positions including the check digits.
Interpreting the result
The generator does not query company registers or prove that a business exists. Check current integration requirements before accepting a production implementation.