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IBAN Validator

Validate International Bank Account Numbers (IBAN) using mod-97 algorithm, check country codes, lengths, and provide bank information.

Quick Test IBANs

IBAN Information

🏦 About IBAN
• International Bank Account Number
• Up to 34 characters (country-specific)
• Uses mod-97 checksum validation
• Required for SEPA payments
• Format: CC kk bbbb cccc cccc cccc

Validation Algorithm

Mod-97 Algorithm
1. Move first 4 chars to end
2. Replace letters with numbers (A=10...Z=35)
3. Calculate remainder when divided by 97
4. Valid IBAN has remainder = 1

IBAN Number

27 characters
Syntax: text

Output

Output will appear here

How It Works

Input Your Data

Paste, type, or upload your data directly into the iban validator. All processing happens locally in your browser for complete privacy and security.

Configure Options

Customize the tool settings to match your specific needs. Real-time processing with instant validation and error detection.

Process Instantly

Click the process button or enable auto-processing for real-time results. Lightning-fast performance with immediate feedback and validation.

Export Results

Copy results to clipboard, download as files, or share with others. Multiple export formats available for maximum compatibility.

Frequently Asked Questions

How does IBAN validation work?
IBAN validation uses the mod-97 algorithm defined in ISO 13616. The algorithm checks the mathematical relationship between the account number and check digits to ensure accuracy.
Which countries support IBAN?
Over 70 countries support IBAN, including all EU/SEPA countries plus many others like Brazil, Saudi Arabia, and Turkey. The tool supports all major IBAN countries.
What is the difference between IBAN and BIC?
IBAN identifies the specific bank account, while BIC (Bank Identifier Code) identifies the bank itself. For SEPA payments, IBAN alone is usually sufficient.
Can I use this for SEPA payments?
Yes, the tool indicates SEPA support for each country. SEPA countries can receive EUR payments using just the IBAN without requiring a BIC code.
Is the bank information lookup accurate?
Bank information is based on publicly available data and may not be complete for all banks. For critical applications, verify with official banking databases.

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