Common use cases
- Banking forms
- Check whether a field accepts a plausible IBAN or BIC format.
- QA test data
- Validate generated values before adding them to fixtures.
- SEPA mockups
- Prepare realistic payment form examples.
Finance · free tool
IBAN and BIC validator for banking forms and test data
Validate IBAN and BIC format, country length and checksum structure.
Your tool
IBAN & BIC Validator
Use it well
How to use IBAN & BIC Validator
Steps
- Paste an IBAN or BIC.
- Run the local validation.
- Review country, length and checksum feedback.
- Use only fictitious or sandbox values for tests.
Limits and good practices
Good practices
- Use realistic test values when validating forms, exports or API payloads.
- Keep real customer, banking and production secrets out of public tools.
- Check the output format before copying it into a production workflow.
- Document whether a value is generated, validated, converted or only estimated.
Common mistakes
- Confusing valid format with real-world validity
- A generated or locally validated value can match a format without proving that it exists in an official system.
- Using real production data
- Public utilities are best for test data, demos, fixtures, QA and quick checks, not for confidential values.
FAQ
Frequently asked questions
What is the difference between IBAN and BIC?
IBAN identifies a bank account, while BIC identifies the bank or financial institution.
Can a valid IBAN receive money?
A format-valid IBAN is not proof that the account exists or can receive payments.
How is an IBAN checksum checked?
IBAN validation commonly uses a modulo 97 checksum after rearranging and converting characters.
Does this tool generate fake IBAN values?
No. This page validates IBAN and BIC values. To create fake IBAN and BIC data, use the IBAN & BIC generator.
Can I use this with Stripe or a PSP?
Use official sandbox values from your payment provider for real integration tests.
Are my inputs sent to a server?
OnSubmit tools run in the browser whenever the task can be processed locally. Avoid pasting production secrets, real banking details or personal data into public tools.