IBAN
IBAN Validator
Check an IBAN’s length and checksum.
DE
Country
22 / 22
Length
✓
Checksum
DE89 3704 0044 0532 0130 00
Formatted
✓ This IBAN is valid.
Runs entirely in your browser. Nothing is sent anywhere.
How it works
- 1Enter your values.
- 2See the result update instantly as you type.
- 3Change any value to compare scenarios.
About this tool
IBAN Validator: Check an IBAN’s length and checksum. Type your numbers and the result is calculated instantly — no button to press, nothing to install. All math runs locally in your browser, so the values you enter are never sent anywhere.
Example
| Input | |
|---|---|
| IBAN | DE89 3704 0044 0532 0130 00 |
| Result | |
| Country | DE |
| Length | 22 / 22 |
| Checksum | ✓ |
| Formatted | DE89 3704 0044 0532 0130 00 |
How do I use the IBAN Validator?
Enter your values. See the result update instantly as you type. Change any value to compare scenarios.
Is the IBAN Validator free?
Yes. It is completely free with no sign-up, no usage limits and no watermark.
Is my data sent to a server?
No. Everything is calculated locally in your browser. Nothing you enter is uploaded, logged or stored.
Does it work on my phone?
Yes. It works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux — no app needed.