IBAN tool
IBAN Checker
Validate an IBAN format locally in your browser. The checker reviews country support, length, allowed characters, and checksum without uploading your input.
How the IBAN checker works
The tool normalizes spaces and hyphens, identifies the country code, checks the expected country length, and runs the IBAN MOD97-10 checksum in the browser.
What this tool checks
- Whether the country code is in the supported IBAN registry data.
- Whether the IBAN has the expected length for that country.
- Whether the value uses allowed letters and digits.
- Whether the check digits pass checksum validation.
What this tool does not check
- It does not confirm that an account exists.
- It does not confirm account ownership.
- It does not confirm that a payment will be accepted.
- It does not contact banks, payment providers, or external APIs.
FAQ
Is my IBAN uploaded?
No. The check runs locally in your browser.
Does a valid checksum prove the account is real?
No. A valid checksum only means the format and check digits appear structurally valid.
Can I use spaces or hyphens?
Yes. Spaces and hyphens are removed before validation.