IBAN Validator
Check bank account numbers and optional BIC format.
Runs 100% in your browser — nothing is uploaded
Validate an International Bank Account Number (IBAN), confirm the country and length, and check whether the checksum passes. Also validates a supplied BIC/SWIFT format for a quick cross-check while reviewing a transfer.
How to use iban validator
- Open the tool and provide the text, number, date, or file it asks for.
- Choose the format, mode, or settings that match the result you need.
- Review the result in the preview or output area.
- Copy the answer or download the finished file when it looks right.
Frequently asked questions
Does it verify the bank account is active?
No. It checks the IBAN structure and checksum — it does not confirm the account exists or that the payment will be accepted.
What does the checksum check do?
It verifies the IBAN's internal validation rules, helping catch typos or malformed account numbers before a transfer is attempted.
Can I validate a BIC too?
Yes. If you enter a BIC or SWIFT code, the tool checks that the format is plausible and consistent with the standard layout.
Is anything sent anywhere?
No. Validation runs locally in your browser, so your transfer data stays on your device.
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