Precision-engineered iban/bic/swift validator for the modern web.
About IBAN/BIC/SWIFT Validator
IBAN/BIC/SWIFT Validator gives you a fast, private way to verify the structural correctness of sensitive identifiers. Instead of rolling your own checksum logic (and getting it wrong), you get a reference implementation that matches the published standard, complete with a clear pass/fail explanation for each input. Because validation happens in-browser, the identifiers themselves are never transmitted or logged — a non-negotiable when the input is customer PII.
Problems This Tool Solves
Validating customer identifiers on an online tool means shipping PII to a third-party server. - IBAN/BIC/SWIFT Validator runs on-device, so customer data stays inside your browser and out of third-party logs.
Rolling your own checksum code usually gets country-specific edge cases wrong. - IBAN/BIC/SWIFT Validator implements the current 2026 published spec, including every country variation, so you do not have to.
Silent validation failures make it hard to tell a bad record from a rule you forgot. - IBAN/BIC/SWIFT Validator shows exactly which rule failed and why, for every input.
Bulk cleaning a legacy dataset record-by-record is slow. - IBAN/BIC/SWIFT Validator supports CSV upload and drains through thousands of records per second in the browser.
How to Use
Paste or upload the input - Single value, a list of values or a CSV file — all handled locally.
Select the variant if needed - For country or region-specific formats, pick the expected variant from the dropdown.
Run validation - Every input is checked against structure, checksum and country rules in milliseconds.
Export the results - Valid, invalid and suspicious records are separated into downloadable CSVs with per-record reason codes.
Why This Tool Is Better
Spec-accurate by 2026 standards - Implements the current published spec including all national variations, not a stale summary.
On-device by architecture - Sensitive identifiers stay inside your browser, which is mandatory for GDPR and PCI-adjacent workflows.
Transparent failures - Every rejected record comes with the exact rule that failed, so you can tell bad data from bad code.
Category: Utility Tools
This tool runs entirely in your browser. No data is sent to any server. Try the IBAN/BIC/SWIFT Validator now - it is free.