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IBAN Validator

Check an IBAN: country length and mod-97 check digits, then format it for print.

Tool inputs stay in your browser · optional AI search sends your query

Good to know: Checks structure and the ISO 13616 checksum. It cannot confirm that the account exists.

How to use it (step by step)

  1. 1Fill in the boxes: “IBAN”. Example numbers are already there so you can see how it works; replace them with yours.
  2. 2The result updates instantly as you type (on a phone it is below the boxes).
  3. 3The bold line is the main answer. Tap Copy next to any value to copy it.

Words to know

IBAN
International Bank Account Number: a long account number used for bank transfers, mostly in Europe and the Middle East.
Hash / fingerprint (SHA-256)
A short code calculated from a file or text. Change even one letter and the code becomes completely different, so it proves nothing was altered.
Struct / class / schema
A description of the shape of data: which fields it has and what type each one is (text, number, list…).

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