IBAN Validator
Enter your IBAN; its validity is checked instantly using the official international checksum algorithm.
Your files never leave your device — everything runs in your browser.
IBAN Validation
You can enter your IBAN with or without spaces. Validation is done using the international IBAN checksum (mod-97) algorithm.
How to Use
- 1Enter your IBAN in the box, with or without spaces.
- 2The result is calculated instantly using the mod-97 checksum algorithm.
- 3No number is ever sent to a server — everything is processed in your browser.
Frequently Asked Questions
What exactly does IBAN validation check?
It verifies that your IBAN follows the correct structure and passes the international mod-97 checksum — it confirms the number is well-formed, not that the account itself exists.