Fake Iban Generator
Free online fake IBAN generator to create syntactically valid IBAN numbers for testing across multiple countries with check digit validation.
About the Fake IBAN Generator
The Fake IBAN Generator is a developer utility designed to generate syntactically valid International Bank Account Numbers (IBANs) for software testing, validation, and demo database seeding. Creating payment flows or financial systems requires valid bank data, but using real bank account information is insecure. This tool allows you to generate random testing accounts that pass mathematical validation.
IBAN Structure and Modulo 97
Every IBAN contains a country code, check digits, and a Basic Bank Account Number (BBAN) that varies in format depending on the country. For example, German (DE) IBANs are always 22 characters long, while French (FR) IBANs are 27 characters.
To verify check digits, the system uses the Modulo 97 algorithm (defined by ISO 7064). By moving the country code and check digits to the end, substituting letters with numbers, and performing a modulo 97 operation, a valid IBAN must produce a remainder of exactly 1.
Frequently Asked Questions
Are these generated IBANs real?
No. The generated IBAN numbers are completely fake and random. They are mathematically structured to pass modulo 97 checksum tests so that software systems accept them during development, but they do not correspond to actual bank accounts and cannot be used for money transfers.
How do I validate a custom IBAN?
You can use the built-in validator on the right panel. Paste any IBAN string into the validation input box and click "Validate Checksum". The tool will instantly parse the code, check its format rules for length, and verify the modulo 97 check digits.
What countries does this tool support?
We support major European countries including Germany, France, the United Kingdom, Spain, Italy, the Netherlands, Belgium, and Switzerland, using the exact structural specifications and lengths mandated by each country's banking system.
Is it safe to validate my IBAN here?
Yes. Like all our mini tools, both generation and validation are executed entirely in the client-side browser context. No data is transmitted to our servers or stored, keeping your input secure.
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