IBAN Checker
Paste or type an IBAN to verify its format, length, and checksum. All validation runs locally in your browser — nothing is transmitted.
Spaces and hyphens are ignored. Validation runs entirely in your browser — no data is sent.
What does this check?
- Format — only letters and numbers, valid country code
- Length — matches the expected length for that country (e.g. GB = 22, DE = 22, FR = 27)
- Checksum — MOD-97 algorithm validates the check digits