Batch CPF Validator
Validate a list of CPFs (one per line) and see which are valid and which are not. No data sent to servers.
How to validate many CPFs?
Paste your list (one CPF per line, formatted or not) and click validate. The tool processes the entire list in your browser and shows a summary of valid, invalid and total.
Validation uses the Receita Federal check-digit algorithm (modulo 11) and rejects repeated sequences like 111.111.111-11.
100% local processing. No CPF is transmitted.
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