Valid random IBAN generator
Generate realistic IBANs with control digits calculated according to ISO 13616. Pick any supported country and receive a number that is ready for QA environments, demos, or fixtures without exposing sensitive banking data.
Configure your IBAN
More than thirty countries with official formats and dynamically calculated checksum digits.
Result
Select a country to generate an IBAN.
Length
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BBAN structure
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Bulk Generator
Generate up to 1000 IBANs instantly and export them to CSV, JSON, or XML.
Recent history
- No IBANs generated yet.
How is an IBAN validated?
- A BBAN is generated that follows the official structure of the selected country.
- The checksum algorithm (modulo 97) rearranges the IBAN and converts letters into numbers to calculate the two verification digits.
- The final result is displayed in groups of four characters to improve readability and reduce copy mistakes.
Important: the generated IBANs are structurally valid and include correct check digits, but they do not belong to real bank accounts. Use them only in testing environments or demos where realistic-yet-fake financial data is required.
History & purpose
Discover the story behind the IBAN
Every IBAN reflects decades of cross-border collaboration. The International Bank Account Number emerged in the 1990s to solve a persistent challenge: moving money between European banks with inconsistent account data. The European Committee for Banking Standards and ISO joined forces to design a structure that would be instantly recognisable worldwide. Today, more than seventy territories rely on the IBAN to route payments without friction.
Why the IBAN matters
A well-formed IBAN allows banks to validate an account number automatically before they move any funds. The checksum digits catch typing mistakes and dramatically reduce the risk of rejected or delayed transfers. Each segment in the code identifies the country, the financial institution, and the internal account reference, creating a consistent language for reconciliation and customer experiences.
Organisations that operate across multiple markets rely on accurate test IBANs while they configure payment gateways, automation scenarios, or QA suites. This generator mirrors each country’s official format so you can validate integrations without exposing sensitive production data.
Evolution and curiosities
Since its official adoption in 1997, the IBAN has expanded far beyond Europe to markets across the Middle East, the Caribbean, and North Africa. Some jurisdictions lengthen the structure to include regional banking codes, while others keep compact versions that favour mobile-first banking journeys.
- The longest IBANs reach 34 characters in markets such as Malta or Cyprus, where detailed bank and branch identifiers are embedded in the code.
- Modern open-banking platforms validate IBANs in real time, displaying contextual messages when an account exists and is ready to receive funds.
- Training teams rely on synthetic IBANs like the ones you can generate here to simulate reimbursements or refunds without risking real balances.
Make the most of this generator
Experiment with different countries and pin your favourite examples in the built-in history. Whenever you prepare a new environment, you can instantly recover the IBANs that already work with your payment flows.
Share curated lists with QA or engineering peers to maintain a shared library of fictitious financial data. Every IBAN produced here includes the correct structure and checksum, making them perfect for automated tests, sales demos, or educational workshops.
Best practices for your projects
Document your testing scenarios in internal wikis or repositories and reference the IBANs alongside the expected outcomes. Clean up old datasets when you migrate environments and limit access to sensitive records so that only synthetic accounts are used in each sprint.
Complement the IBAN with other synthetic attributes, such as account holder names or BIC codes, to recreate full user journeys. This approach reveals cross-validation bugs, approval workflows, and event-driven automations within minutes.
Frequently Asked Questions
Common questions about IBAN generation and usage
What is an IBAN?
An IBAN (International Bank Account Number) is a standardized international numbering system developed to identify bank accounts across national borders. It consists of a country code, two check digits, and a Basic Bank Account Number (BBAN) that includes the bank identifier and account number. IBANs were introduced to reduce errors in cross-border transactions and are used in over 70 countries worldwide.
Are the generated IBANs safe to use?
Yes, the generated IBANs are completely safe for testing, development, and demonstration purposes. They are structurally valid and include correct check digits according to ISO 13616 standards, but they do not correspond to real bank accounts. Never use these IBANs for actual financial transactions or in production payment systems. They are designed exclusively for QA environments, demos, documentation, and educational purposes.
Which countries are supported?
Our generator supports over 30 countries including all major European markets (Germany, France, Spain, Italy, United Kingdom, Netherlands, Belgium, Portugal, Ireland, Switzerland, Austria), Nordic countries (Sweden, Norway, Finland, Denmark, Iceland), Eastern European countries (Poland, Czech Republic, Slovakia, Hungary, Romania, Bulgaria, Croatia, Slovenia, Serbia), Baltic states (Estonia, Latvia, Lithuania), and select Middle Eastern and other regions (Saudi Arabia, UAE, Qatar, Turkey, Cyprus, Malta, Brazil, Costa Rica, Dominican Republic, Israel). Each country implementation follows the official IBAN format specifications published by national banking authorities.
How does IBAN validation work?
IBAN validation uses the modulo 97 algorithm defined in ISO 13616. The process involves moving the first four characters (country code and check digits) to the end of the IBAN, converting all letters to numbers (A=10, B=11, ... Z=35), and performing a modulo 97 operation on the resulting number. If the result equals 1, the IBAN is valid. Our generator automatically calculates the correct check digits for each generated IBAN to ensure they pass this validation.
Can I use these IBANs in production systems?
No, absolutely not. The generated IBANs are synthetic test data and must never be used in production payment systems, live transactions, or any real financial operations. They are intended solely for testing environments, quality assurance, demonstrations, training materials, and documentation. Using fake IBANs in production could lead to payment failures, compliance issues, and potential legal problems.
Can I generate multiple IBANs at once?
Yes, our bulk generator allows you to create up to 1000 IBANs instantly. You can export them in multiple formats including CSV (for spreadsheets), JSON (for API testing), or XML (for legacy systems). This feature is particularly useful for creating large test datasets, populating QA databases, or preparing demonstration environments with realistic financial data.
What is the structure of an IBAN?
An IBAN consists of up to 34 alphanumeric characters with the following structure: a two-letter country code (e.g., DE for Germany), two check digits calculated using modulo 97, and a Basic Bank Account Number (BBAN) that varies by country. The BBAN typically includes a bank code, branch identifier, and account number. For example, a German IBAN has 22 characters, while a UK IBAN has 22 characters, and a French IBAN has 27 characters. The exact length and format depend on each country''s banking standards.
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