IBAN Validator
/iban-validatorValidate International Bank Account Numbers and extract bank details from the BBAN portion.
International wire transfers fail when IBANs are mistyped or incomplete. This validator checks IBAN structure, checksum, and length for dozens of countries. It also extracts bank details from the BBAN portion. Validation runs entirely in your browser, keeping account data private.
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FAQ
Frequently asked questions
Everything you need to know about iban validator.
How does validation work?
The IBAN is rearranged and converted to digits, then checked with modulo 97 arithmetic. A remainder of 1 confirms the check digits are correct.
Which countries are supported?
All standard IBAN countries are supported, each with its official IBAN length and structure rules applied during validation.
Can it extract bank details?
Yes. The BBAN portion is parsed to extract the bank code and account number, which are shown alongside the validation result.
Why is the modulus 97 check important?
The modulo 97 check is the core integrity test defined by the IBAN standard, catching most typing errors, swaps, and corrupted account data before transfer.
Is my IBAN uploaded?
No. Validation runs entirely in your browser, so bank details and account numbers never leave your device at any point.
Do spaces in the IBAN matter?
No. Spaces are stripped before validation, so a correctly grouped IBAN with spaces validates identically to the ungrouped version.
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