CPF Validator
Validate CPF numbers and check if they are valid
CPF Validator
Check if a Brazilian CPF is valid
Enter a CPF number with or without punctuation (e.g., 529.982.247-25 or 52998224725)
Enter a CPF number above to validate it
Examples:
Valid: 529.982.247-25
Invalid: 111.111.111-11 (all same digits)
Invalid: 123.456.789-00 (wrong check digits)
How to Use
1. Enter the CPF number (with or without punctuation)
2. Click "Validate"
3. See the instant result
Examples
Valid CPF: 529.982.247-25
Invalid CPF: 111.111.111-11
CPF Validator
Online CPF validator that checks if a CPF number is valid according to the check digits. Essential tool for developers who need to validate form inputs.
How to Use - FAQ
How does CPF validation work?
The validation checks if the CPF check digits are correct according to the official Brazilian Federal Revenue algorithm. This does not guarantee the CPF exists, only that it is mathematically valid.