Runs locally
IBAN Check
Mod-97 check of an IBAN. It does not look the account up.
Ctrl+Enter runs. Ctrl+Shift+Backspace clears.
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Mod-97 check of an IBAN. It does not look the account up. Runs in the browser. Nothing is uploaded.
About this tool
Avoid a failed or misdirected transfer by checking the IBAN for typos first. Paste the number with or without spaces and see whether its checksum is valid.
How to use it
- 01
Paste the IBAN.
- 02
Read whether the mod-97 check passes.
- 03
Fix the number if it fails.
FAQ
Frequently asked questions
Does a valid IBAN mean the account exists?
No. The check catches typos, but only the bank can confirm that the account is real.
Are spaces allowed?
Yes. Spaces are ignored, so you can paste the IBAN as printed.