01 / Fast steps
- Enter an IBAN (spaces are fine).
- Read the validity check and formatted IBAN instantly.
IBAN Validator
Enter an IBAN to instantly check whether it is structurally valid and see its country and formatted form.
Updates instantly as you type
02 / Best for
- Checking an IBAN for typos before sending or saving it.
- Validating an IBAN format during development or QA.
- Quickly formatting an IBAN into readable groups of 4.
03 / Why here
- Runs entirely in your browser, the IBAN is never sent anywhere.
- Uses the standard ISO 7064 MOD 97-10 checksum used by banks.
- Formats the IBAN into readable groups.
04 / Keep in mind
- This checks the IBAN format and checksum only, it does not verify that the account actually exists.
Tool connections
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Good to know
Questions & answers
01Does this confirm the account exists?
No, it only checks that the IBAN is structurally valid (correct format and checksum). Confirming a real account requires your bank.
02Is my IBAN sent anywhere?
No, the entire check runs locally in your browser. Nothing is transmitted or stored.
03Is IBAN Validator free to use?
Yes, IBAN Validator is completely free, with no sign-up and no usage limits. It runs entirely in your browser, so your data never leaves your device.