Brazil Validators

Validate Brazilian documents and data securely and privately with online tools.

Banking & Finance

Boleto Validator

Validate and convert barcodes and digitable lines for Brazilian bank slips.

Verify the validity of credit card numbers using the Luhn algorithm.

Natural Person Documents (PF)

Validate CPF numbers using official Federal Revenue algorithms.

Validate Driver's License numbers following DENATRAN rules.

Validate definitive or provisional National Health Cards (SUS).

Verify the validity of worker PIS, PASEP, or NIT numbers.

Validate voter IDs by checking digits and state codes.

Validate 32-digit birth, marriage, or death certificate numbers.

Legal Entity Documents (PJ)

Validate the National Registry of Legal Entities in the traditional numeric pattern.

Alphanumeric CNPJ

Prepare your system for the new Federal Revenue CNPJ pattern (2026).

Local Processing (Privacy-First)

Just like all Box4Dev tools, the validators process data directly in your browser. No sensitive documents or data are sent to our servers, ensuring 100% privacy.