MockStackPricing

Fake IBAN generator (valid checksum)

Need test IBANs that actually pass validation? These are generated with correct IBAN mod-97 check digits for FR, DE, GB, ES and more — so your form and payment code accept them, while remaining fake.

Schema

FAQ

Are these real bank accounts?

No. They are random but pass the IBAN checksum (mod-97). Never use them for real transactions.

Which countries?

FR, DE, GB, ES, IT, NL, BE, PT, IE, LU — set the country per field.

Why not ask ChatGPT?

LLMs routinely emit IBANs that fail the mod-97 check, and can't reliably output thousands of rows as a file.

Pricing concept

Free during beta

The generator is completely free right now. These paid tiers are a concept — payment is not active yet. Tell us which would be useful (an API? saved schemas?) and we'll invite you first.

FreeDuring beta
€0
  • Up to 50k rows / run
  • CSV · JSON · SQL
  • Valid IBAN / Luhn / SIRET
  • No account
ProConcept
€9/mo
  • Everything in Free
  • Save & share schemas
  • Seeded (repeatable) data
  • Relational / linked tables
BusinessConcept
€29/mo
  • Everything in Pro
  • REST API + CLI
  • Higher row limits
  • More locales & types

More generators