Bulk IBAN Validator
Batch processingValidate a list of IBANs in one go. Paste one per line (or comma/semicolon separated) and get a clear valid/invalid breakdown with error details for each.
Paste your IBANs and click "Validate all"
Input format
One IBAN per line. Commas and semicolons are also accepted as separators. Lines starting with # are treated as comments and ignored. Spaces within IBANs are stripped automatically.
Common issues
- •Excel/CSV exports — spreadsheet tools sometimes add extra whitespace or BOM characters at the start of a file. Use the JSON export to get clean, normalized output.
- •Mixed separators — if pasting from a CSV, the validator handles commas and semicolons automatically alongside line breaks.
- •Partial IBANs — validation is country-aware. A German IBAN must be exactly 22 characters — truncated inputs will always fail.