IBAN Formatter

Format IBANs for different use cases. Convert between electronic and print formats, apply country-specific grouping, or batch format multiple IBANs at once.

Input IBAN(s)

Choose how to format your IBAN(s)

Formatted Output

Batch Format with Validation

Format multiple IBANs and validate them at the same time:

Format Guidelines

Electronic Format

Used for electronic transactions and data processing. No spaces, uppercase letters only.

GB29NWBK60161331926819
Print Format

Used for paper documents and human readability. Grouped with spaces.

GB29 NWBK 6016 1331 9268 19
Country-Specific Format

Follows the official formatting rules for each country, which may vary in grouping.

DE89 3704 0044 0532 0130 00 (Germany)
FR14 2004 1010 0505 0001 3M02 606 (France)
💡 Best Practice
Use electronic format for APIs and databases. Use print format for displaying to users or on printed documents. Country-specific format is recommended for official communications.

IBAN Formatting Standards

IBANs can be represented in different formats depending on the use case. Understanding when to use each format ensures compatibility and readability.

Format Types Explained

Electronic Format

No spaces, uppercase only. Used for electronic transactions, APIs, and databases.

GB29NWBK60161331926819
When to use: Payment processing, API requests, database storage

Print Format (4-char groups)

Grouped in 4-character blocks for readability. Standard format for paper documents.

GB29 NWBK 6016 1331 9268 19
When to use: Invoices, statements, printed forms, user interfaces

Country-Specific Format

Follows official formatting rules for each country. Grouping may vary.

DE89 3704 0044 0532 0130 00FR14 2004 1010 0505 0001 3M02 606
When to use: Official communications, regulatory compliance, local standards

Best Practices

  • Always store IBANs in electronic format (no spaces) in databases
  • Display IBANs in print format for user interfaces and documents
  • Use country-specific format for official banking communications
  • Validate IBANs before formatting to ensure data quality
  • Remove spaces before processing IBANs in payment systems

Batch Formatting

Our batch formatter allows you to process multiple IBANs simultaneously. This is particularly useful for:

  • Data migration and cleanup projects
  • Preparing customer lists for mailings
  • Converting between system formats
  • Quality assurance and validation tasks