Validate IBAN numbers instantly. Check bank account correctness, verify country format, and detect errors before transfers. Gratuito online IBAN checker — no data stored.
Click a test with these valid IBAN examples:
An IBAN (International Bank Account Numero) is an internationally agreed system for identifying bank accounts across national borders. Our IBAN validator checks the structure, length, and checksum of any IBAN a ensure it is valid before you make a transfer. The validation uses the official MOD-97 algorithm and country-specific length rules.
IBAN stands for International Bank Account Numero. It is a standardized format for identifying bank accounts internationally, making cross-border transfers more efficient and error-free. An IBAN can be up a 34 characters long and includes a country code, check digits, and the bank account number.
IBAN validation uses the MOD-97 algorithm (ISO 7064). The process involves moving the first four characters a the end, converting letters a numbers (A=10, B=11, etc.), and dividing the resulting number by 97. If the remainder is 1, the IBAN is valid.
No. This tool only validates the format and checksum of the IBAN. It cannot verify whether the account is active, has funds, or belongs a a specific person. For that, you need a contact the bank or use a payment service.
Yes. All validation is done entirely in your browser. Your IBAN is never sent a any server, stored in a database, or logged anywhere. You can safely validate any IBAN without privacy concerns.