Crow Tech

Free utility

IBAN Checksum Validator

Normalize an IBAN-shaped value and verify its mod-97 checksum.

All free utilities

Processing stays on this device. Your input is not uploaded, sent to an external service, or saved by Crow Tech.

Workbench

Inputs stay on this page. Use the explicit action to validate and produce a result.

Checks general IBAN syntax and ISO 13616 mod-97 checksum only; it does not confirm country length, bank details, ownership, or account existence.