Online Bank Account Validator
Verify the format validity of a Brazilian bank account. Free online tool to validate branch and account numbers.
About this validator
This tool helps validate branch and account combinations from Brazilian banks using structural verification rules.
It is useful for tests and forms, but it does not check balance, ownership, or whether the account really exists.
Best practices
- Pick the correct bank before validating check digits.
- Normalize input by removing unnecessary spacing when needed.
- For real financial flows, complement it with secure backend verification.
Important notice
This tool performs only local structural checks. It does not confirm official banking details or authorize transactions.