Data Tinker
data-tinker / banking / iban
IBAN generator (Spain)
ES, 2 check digits (ISO 13616, mod 97) and the CCC. The validator accepts IBANs from 36 countries.
Free, no sign-up and no limits. Everything is generated in your browser: nothing is sent anywhere.
What if it filled itself in?
With the Data Tinker extension there is no copying and pasting: it fills the whole form from a panel next to the page, with templates per form and rules for your own fields.
Add to Chrome freeAll generators
Profiles
Personal documents
Banking
Addresses and phones
Justice
Property and utilities
Vehicles
Dates and times
Texts
Technology
Test data: valid in format and check digits, but made up. A randomly generated number may match a real person's; do not use them on real systems.