Codes and Test Data
Random Account Number Generator
Generate account numbers of any length for test systems and demo data sets.
Random Account Number Generator
10 digit number
How many account numbers
Length
Generate account numbers
This tool creates random numeric account numbers of the length you set, from eight to sixteen digits. They suit test data, form validation and demos where you need realistic looking account numbers that belong to no real account.
Just the right length
Different systems use different lengths, so the tool offers common sizes and generates as many as you need at once. Every digit is independent, so the numbers carry no pattern that a system might reject or accept by accident.
Safe test data
These are random digits, not numbers tied to any bank or customer. They are made in your browser from the cryptographic random source, and nothing leaves your device, which makes them safe to paste into test systems.
Popular generators
Frequently asked questions
What lengths can I choose
Eight, ten, twelve or sixteen digits, covering the common shapes of account numbers across systems.
Are these real bank accounts
No. They are random digits for testing and demos, not linked to any real account.
Can I generate many at once
Yes, up to 500 at a time, ready to copy or export as a CSV.
Do they include a check digit
No. For a checksummed format such as a bank IBAN, use the IBAN generator instead.
Is it free
Yes, free and with no sign up.
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For a full international bank number with a checksum, use the IBAN generator.