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IBAN Validator
Verify International Bank Account Numbers instantly with the official mod 97 checksum. Paste an IBAN to confirm its structure before sending funds.
Normalized IBAN
DE89 3704 0044 0532 0130 00
Country code: DE
The validator follows ISO 13616: we remove whitespace, move the four leading characters to the end, replace letters with numbers (A=10, B=11, …), and ensure the resulting number has a remainder of 1 when divided by 97.
What this tool does
IBAN Validator helps you verify International Bank Account Numbers instantly with the official mod 97 checksum. Paste an IBAN to confirm its structure before sending funds.
What you get
IBAN Validator produces a direct output in this page and keeps all processing on your device, with nothing uploaded to our servers.
Report a bug
If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.