IBAN vs BIC/SWIFT Code: What's the Difference and When Do You Need Each?
IBANs identify bank accounts; BIC/SWIFT codes identify banks. Learn the difference, when you need both, and when one is enough.
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Payments, IBANs & Banking
Practical guides for finance professionals, developers, and anyone who needs to understand how international payments actually work.
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Top IBAN Validation Libraries for Node.js, Python, PHP, and Go in 2026
Comparison of ibantools, python-stdnum, php-iban, and go-iban — features, MOD-97 support, BIC lookup, TypeScript support — plus when to use a library vs. a hosted API.
Read article →IBAN Validation in PHP: Vanilla Implementation, php-iban Package, and Laravel Integration
Three production-ready PHP approaches: a zero-dependency MOD-97 function, the globalcitizen/php-iban Composer package, and REST API integration with a Laravel validator rule.
Read article →How to Convert a French RIB to IBAN — Step by Step
Convert a French RIB (code banque, code guichet, account number) to a valid FR IBAN. Covers the Clé RIB formula, MOD-97 check digits, Python and TypeScript code, and common mistakes.
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