Check if a CPF is mathematically valid in seconds. Validation done directly in your browser.
Enter a CPF or paste a list of several CPFs to validate automatically. Verification only uses the calculation of the check digits. No data is sent to the server.
⚠️ This tool only checks the mathematical validity of the CPF digits. It does not consult the Receita Federal database or guarantee registration status or real existence. Use only for tests, homologation and authorized internal conferences. Never use for fraud or improper access.