IBAN Validator — Check IBAN Online

Paste an IBAN to validate structure and mod-97 check digits. Does not verify account existence — paste-only.

—Valid
—Country

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How to use

  1. Paste the IBAN string in the input field.
  2. See validation status, country code, and formatted IBAN.
  3. Fix check digits or formatting errors before submitting payments.

Frequently asked questions

How is IBAN validated?

Mod-97 checksum on the rearranged IBAN per ISO 13616.

Does this verify the bank account exists?

No. It only validates format and check digits — paste-only, no bank lookup.

Are spaces allowed?

Yes. Spaces are stripped before validation and the formatted output groups by fours.

Is my IBAN sent to a server?

No. Validation happens entirely in your browser.

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