Free ID number tools

Validators and test-data generators for developers and data teams

Check identity numbers and IBANs, and generate test IDs that can never belong to a real person. Everything runs in your browser.

Nothing leaves your browser. The check runs in this page, and its security policy blocks every network request, so what you type is never sent anywhere.

Why only two generators?

A test ID is only safe if it can never match a real person. Finland and Norway reserve ranges for that, so their generators use those ranges. Most other countries do not, and a made-up number that passes the check digits can belong to someone real, so there are no generators for them here.