Whether you are testing a payment form, learning how IBANs work, or preparing invoice QR codes, you need banking data that is correctly formatted for testing, with clear limitations. Every generator here is built on official registry data: the SWIFT IBAN registry for country formats, the ABA checksum formula for US routing numbers, ISO 9362 structure for BIC codes: so generated values can exercise format and checksum validation without claiming that any bank account exists.

Free, private, and thorough

Nine free tools: generation, validation, calculation and export: no accounts, no limits, no watermarks.
Private by design: everything runs in your browser. Your inputs never leave your device.
89 countries: from Germany’s 22-character IBANs to Brazil’s 29-character format, each with its exact official structure.

Honest about what this is

Generated values are synthetic test data. They are not checked against live bank directories and must not be treated as proof of a real or non-real account. Every page says so plainly, and we deliberately do not offer anything fraud-adjacent (like credit-card generators). That is the same standard the established IBAN sites hold themselves to.

Data source & validation scope

IBAN country formats are maintained against the SWIFT ISO 13616 IBAN Registry, Release 103 (September 2026). This site checks or generates format structure and mathematical check digits locally in your browser. It does not query live bank-account, routing-number or BIC directories, so a structurally valid result is not proof that an account, bank or branch exists.

Learn the basics

Helpful guides for developers, ops teams and anyone working with banking formats.

How IBAN validation works

What a validator checks, and what it cannot verify.

Read guide

IBAN check digits explained

Follow the MOD-97 calculation step by step.

Read guide

Which countries use IBAN?

Explore country formats and their differences.

Read guide

Browse all guides →

Methodology & data sources

Clear, trustworthy inputs matter in finance-adjacent tooling.

IBAN format sourceSWIFT IBAN Registry Release 103Lengths and BBAN structures for all supported countries.

Validation logicISO 13616 MOD-97 checksumCountry recognition + length + BBAN pattern + checksum.

SWIFT/BIC formatISO 9362 structure referenceSyntax-only generation and validation.

Privacy approachClient-side where possibleGenerated test data is created in the browser without signup.

What makes this site useful?

Not just a checksum

The validator checks the country format, BBAN structure and check digits rather than relying on a single mathematical test.

Built for testing

Generators produce synthetic data designed for QA, front-end testing, demos and education.

Human-readable explanations

Guides, examples and diagrams help teams understand why a value is valid or invalid.

Frequently asked questions

Is IBAN Toolkit really free?

Yes. All nine tools are free with no accounts, no usage limits and no watermarks.

Do you store the data I generate?

No. Everything runs in your browser via JavaScript. We never see, log or store your inputs.

Can I use generated data in real banking apps?

No. Generated values are synthetic test data that is not checked against live bank directories. Do not assume a generated value is unassigned, and never use it at a real bank: and must never be used to mislead anyone.

Which tools are available?

IBAN generator, bulk fake IBAN generator, IBAN validator, IBAN calculator, SWIFT/BIC generator, bank account number generator, US routing number generator, UK sort code generator, and SEPA QR code generator.

Testing and educational use. Generated identifiers are synthetic and are not checked against live bank directories. A randomly generated value can coincidentally resemble or match a real identifier. Never use generated data for real payments, account applications, identity verification, or to represent a real person or institution.

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