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Fake IBAN Generator

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⚠️ TEST DATA ONLY — these IBANs are not linked to any real bank account. Never submit one as identity/payment verification.

Free fake IBAN generator for 14 countries with valid mod-97 checksums, for testing payment forms and fintech apps — no real bank account is attached. Unlike two popular generators we checked (10015.io, fakeiban.org), this one shows the exact checksum math (letters-to-digits, the mod-97 remainder, the final check digit) so developers can verify it themselves instead of trusting a black box, and displays a prominent test-data-only warning that neither competitor shows on-page.

How it works

  1. Pick a country and how many IBANs to generate
  2. Each one gets a valid mod-97 checksum for that country's format
  3. Copy one or all, and expand 'How the checksum was computed' to see the exact math

Frequently asked questions

Is this a real, working bank account number?

No — these IBANs pass the mod-97 checksum validation (so they look structurally correct), but they are not linked to any real bank account. Never submit one for identity or payment verification.

How do I know the checksum is actually correct?

This tool shows the full calculation for the first result — the rearranged string, the letter-to-digit conversion, the mod-97 remainder, and the resulting check digit. We checked two popular fake IBAN generators directly (10015.io, fakeiban.org) and neither one shows this — they just claim the output passes validation.

Which countries are supported?

14 countries including Germany, France, UK, Spain, Italy, Netherlands, and more — see the dropdown for the full list.

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From the blog

Two fake IBAN generators say their output 'passes validation.' Neither shows the math.
security

Two fake IBAN generators say their output 'passes validation.' Neither shows the math.

We checked 10015.io and fakeiban.org directly — both claim mod-97 compliance but neither one shows you the actual checksum calculation. So we built one that does.

2026-09-01

Update history

  • 2026-09-01 Added: a cover image (a bank card outline with a bold red TEST ONLY stamp across it) — used as the card thumbnail, social share image, and blog title image.
  • 2026-09-01 Launched: fake IBAN generator for 14 countries with valid mod-97 checksums (verified against the official GB82 WEST test vector), a visible checksum-calculation breakdown, batch generation up to 20, and a prominent test-data-only warning. Entirely client-side.