Validate CPFs instantly using the official Brazilian Federal Revenue algorithm. Free tool for forms, systems and development. Local validation, no registration, immediate results.
CPF Validator
Enter a CPF to check if it's valid
About CPF Validator
Professional tool that validates CPFs using the official Brazilian Federal Revenue algorithm. Instant and local validation, no data sent to servers. Ideal for forms, systems and development.
Why use our tool?
✓Official Brazilian Federal Revenue algorithm
✓Accepts any CPF format
✓Instant validation
✓100% local processing
How to use
• Enter the complete CPF (11 digits)
• Works with or without formatting (123.456.789-10 or 12345678910)
• Validate CPFs before using in forms
• Use only for legitimate validation
ℹ️ Important: Validation is done locally in your browser. No data is sent to our servers, ensuring complete privacy and security.