Is my IBAN data safe with this validator?

Absolutely. Everything runs locally in your browser. Your IBAN data never leaves your device. All validation (format check, MOD-97 checksum) is performed locally. The tool works even offline.

What is the MOD-97 checksum?

MOD-97 is the core IBAN validation algorithm. Letters are converted to numbers, then the total is divided by 97. If the remainder is 1, the IBAN check digits are valid. This ISO 7064 standard algorithm detects common input errors like single-character mistakes and transpositions.

What's the difference between IBAN and SWIFT/BIC?

IBAN identifies your specific bank account, while SWIFT/BIC identifies the bank itself. International transfers typically need both: IBAN for the target account and SWIFT/BIC for the target bank.

Do all countries use IBAN?

No. European countries widely use IBAN, as do parts of the Middle East and Asia. The US, Canada, Australia, New Zealand, and China primarily use domestic account systems. However, their banks can usually process IBAN payments.

Free Online IBAN Validator · Check International Bank Acc...

📋 Sample IBANs

Germany: DE89 3704 0044 0532 0130 00

France: FR14 2004 1010 0505 0001 3M02 606

UK: GB29 NWBK 6016 1331 9268 19

Italy: IT60 X054 2811 1010 0000 0123 456

Spain: ES91 2100 0418 4502 0005 1332

Netherlands: NL91 ABNA 0417 1643 00

📖 How to Use

✦ Quick Start

Enter input：Paste or type your data in the input field.
Configure options：Adjust parameters as needed.
View results：Click the button to process. All data is handled locally in your browser — nothing is uploaded to any server.

✦ What is an IBAN?

IBAN (International Bank Account Number) is an ISO 13616 standard format for international bank accounts. It consists of up to 34 alphanumeric characters including country code (2 letters), check digits (2 digits), and domestic bank account number.

✦ IBAN Structure and Format

IBAN structure: 2-letter country code + 2 check digits + domestic bank account number (alphanumeric). Length varies by country (e.g., Germany 22, France 27, UK 22). IBANs are often grouped but spaces must be removed for validation.

✦ Importance of IBAN Validation

Proper IBAN validation prevents transfer errors. The MOD-97 algorithm detects common input mistakes (single-character errors, transpositions, missing characters), ensuring international payment accuracy.

🏦 IBAN Validator

🏦 IBAN Validation