How to validate CPF and CNPJ online

Validating CPF and CNPJ is essential in registration forms to ensure that the provided documents are valid from the point of view of check digits.

How to validate CPF or CNPJ

1. Access the CPF/CNPJ Validator tool.
2. Enter the CPF or CNPJ (with or without formatting).
3. Click Validate.

The tool will verify if the document follows the check digit calculation rules and inform if it is valid or invalid.