Geo & Location Tools
IBAN Validator & Formatter
Validate International Bank Account Numbers (IBAN) with checksum and country format.
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What is IBAN?
IBANs standardize bank account identification across countries. This validator checks length, country-specific format, and the MOD-97 checksum.
How it works
We extract the country code, rearrange (move first 4 chars to end, convert letters to numbers), and verify mod 97 = 1.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Type or paste any realistic input — the tool computes the result locally and instantly.
Common mistakes
Expecting a server round-trip
Nothing is uploaded — every tool in this category runs entirely in your browser.