Your IBAN service

Check and generate IBANs in seconds, free in your browser or automated via API. Catch transposed digits, typos and invalid entries directly at the source.

Start free with your own API key

Check an IBAN for plausibility.

The check determines whether an IBAN can actually have been issued by a credit institution.

Detect typing errors or deliberate incorrect entries in good time and thus save unnecessary costs for return debit notes.

Just enter an IBAN and the software checks if it could be valid.

generate IBAN

The check determines whether an IBAN can actually have been issued by a bank.

Recognize typographical errors or deliberate incorrect entries in good time and thereby save unnecessary costs for returned direct debits.

Simply enter your sort code and account number and the software will then generate your IBAN.

IBAN API pricing

Choose the right package for IBAN validation via API.
From a free starting point to high validation volumes for shops, SaaS products and automated SEPA processes.

* Offers only for commercial use, prices excl. VAT.

Frequently asked questions

Have questions about IBAN-Test? You will find answers about using the service, the API, checking and generating IBANs and more in the FAQ section.

Can I use IBAN-Test for free?

Yes, you can start without a paid plan. New users get 10 free checks to try IBAN-Test.

For regular use, larger volumes or automated validation, you can use one of the API packages. The API and MCP interface are designed for reliable integration in shops, back-office systems and AI tools.

Are entered IBANs or account details stored?

No. IBANs, account numbers and bank codes entered for checks or generation are not stored for later use.

Account and API access data is stored only where it is needed to manage your user account, prevent misuse and provide the booked service.

Why are not all countries supported?

IBAN-Test supports countries where reliable validation data and rules are available.

Some services generate IBANs for more countries without validating the underlying bank and account details. We prefer fewer supported countries with better checks and clearer results.

How can I contact IBAN-Test?

If you have a question or run into a problem, please use our contact form.

Send us a short description of your request and we will get back to you as soon as possible.

App for Android and iOS

Check IBANs on the go

With the IBAN-Test app for Android and iOS, you can use the most important website features conveniently on your smartphone.

Check and generate IBANs on the go in just a few seconds, with a clear interface and direct access to the familiar IBAN-Test functions.

You can find the app as "IBAN-Test" on Google Play and in the Apple App Store, or directly here:

Questions or suggestions?

Do you have questions or suggestions about our products? We look forward to hearing from you.

Bank data validation

Validation against bank directories

For these countries, we check IBANs against available bank directories and return bank details such as institution, city and BIC when available.

DEGermany ATAustria BEBelgium FRFrance LULuxembourg NLNetherlands PTPortugal ESSpain

IBAN syntax check

Format checks for 111 IBAN countries

Check IBANs for a valid structure, correct length and checksum. This helps you catch typos and transposed digits before a payment fails. Additional bank validation against real bank directories is available for the countries listed above.