When to use IBAN validator?
Mathematically validate an IBAN before entry or import without sending it to a remote service.
- Check an IBAN from a form
- Detect typing errors
- Review an IBAN before import
Utilities & generators · ONLINE TOOL
IBAN validator
Check IBAN format, country length and MOD-97 checksum without contacting a bank.
Local processingNo account required
CONCRETE EXAMPLE
French IBAN
BEFORE
→FR76 3000 ...
AFTER
Country FR · length 27 · valid MOD-97 checksum or explained error
Your data stays in the browser
Processed content is not uploaded to WorkToolset. Required libraries may be loaded by the site, but the file stays in the browser.
Limitations to know
- A mathematically valid IBAN may still refer to a closed, nonexistent or different account holder.
- No bank lookup is performed.
A straightforward workflow.
- 1Prepare the required input and choose useful options.
- 2Review previews, warnings and limitations before export.
- 3Download a new copy or report: the original stays unchanged.
Frequently asked questions
Are my files uploaded to WorkToolset?
No. This tool runs locally in your browser.
Is my original file modified?
No. WorkToolset creates a new copy or export.
Do I need an account?
No for this free tool. Accounts are mainly used for favorites, presets and future workflows.