This tool works with Brazilian documents and rates (CPF, CNPJ, Selic, IPCA).
Generators
Document Generator
- cpf
- cnpj
- brasil
- cnpj alfanumérico
Generate and validate Brazilian CPF and CNPJ online — one at a time or in batches, including the new alphanumeric CNPJ format (2026). Free for testing and prototypes.
Generates and validates CPF and CNPJ with correct check digits — one at a time or in batches (up to 100) — including the alphanumeric CNPJ format planned by Brazil's tax authority from July 2026 (letters and digits in the first 12 positions). The validator accepts numeric and alphanumeric formats; the generator produces both, with an option to use numbers only for the legacy model. For staging and testing only — never with real company data.
Documentation