Turn a +country-code phone number into E.164, with a length check for 10 common countries
IBAN Validator & Parser
Runs locally
Use IBAN Validator & Parser
What it does
Paste an IBAN, with or without spaces, to test its check digits (ISO 7064 mod 97-10) and its length for the country, and see it split into parts and grouped in fours.
It runs entirely in your browser: nothing you enter is uploaded.
Example
Published sample IBAN
GB82 WEST 1234 5698 7654 32VALID IBAN
COUNTRY
United Kingdom (GB)
CHECK DIGITS
82
LENGTH
22 / expected 22
BBAN
WEST12345698765432
MOD-97 CHECK
Pass (remainder 1)
FORMATTED
GB82 WEST 1234 5698 7654 32VALID IBAN: United Kingdom (GB), check digits 82, length 22 / expected 22, BBAN WEST12345698765432, mod-97 check passes (remainder 1).
FAQ
What does VALID IBAN mean here?
The check digits pass the mod-97 test and, for countries in the tool's table, the length matches. It does not check the national bank code or account number format, does not look up the bank or BIC, and cannot tell who owns the account or whether it exists.
Which countries are covered?
The length table lists 75 countries. Some countries added to the IBAN registry more recently, such as Egypt and Libya, are missing; for codes not in the table only the checksum is tested.
Is the IBAN sent anywhere?
No. The check is arithmetic in your browser; nothing is uploaded or looked up.