How to use it
Paste an IBAN to instantly check whether it is valid. The tool verifies the two-letter country code, the expected length for that country, and the ISO 7064 (mod 97) check digits — the same standard banks use to catch typos before a transfer. It does not check whether the account actually exists, only that the number is well-formed. Everything runs in your browser.
Example
DE89 3704 0044 0532 0130 00 ✓ Valid IBAN (Germany) Frequently asked questions
Does a valid result mean the account exists?
No. The check confirms the IBAN is mathematically well-formed (correct country, length and checksum). It cannot tell whether the account is open or who owns it — only the bank can.
Which countries are supported?
Over 100, including all SEPA/European countries. For a country not in the length table, the tool still verifies the ISO 7064 checksum and tells you the country was not recognized.
Is my IBAN sent anywhere?
No. Validation runs entirely in your browser; nothing is uploaded.