Documents

Check whether a CPF has valid check digits.

Check whether a CNPJ has valid check digits.

Format CPF and CNPJ with masks, remove punctuation, and copy the result in the browser without validating registration or checking Receita Federal.

Check PIS, PASEP, NIS, or NIT check digits locally in the browser without querying official Brazilian systems.

Check Brazilian IE format and check digits by state in your browser. See rule coverage without looking up registration status.

Check the structure and check digits of a Brazilian CNH national registration number using compared public conventions, without an official lookup.

Check in the browser whether a Brazilian voter registration number has a compatible UF code and check digits, without querying electoral status.