CNH Generator
Free online CNH generator. Create random valid Brazilian driver's license (CNH) numbers for education and software testing, and copy them with a single click.
Want to validate instead?What is a CNH?
The CNH (Carteira Nacional de Habilitação) is the Brazilian driver's license, the official document that allows its holder to drive motor vehicles. It is issued by the state traffic departments (Detran) and is divided into categories such as cars, motorcycles and heavy vehicles. Its 11-digit registration number (número de registro) is a common field in Brazilian insurance, rental, ride-hailing and logistics systems.
How is a CNH number formed?
A CNH number is made up of nine random digits followed by two check digits (DV1 and DV2). DV1 is calculated from a weighted sum of the first nine digits, keeping the result between 0 and 9. DV2 is calculated in a similar way. The check digits let systems detect typos and reject made-up numbers.
How to use
- Choose the separator: line break or comma.
- Set how many CNH numbers to generate (1–100).
- Click Generate.
- Copy the generated number(s) by clicking Copy.
NOTE: This generator is intended only for educational purposes and for testing software and websites. The numbers are random and follow the real CNH validation rules, but they do not belong to real people. We are not responsible for any misuse of this tool.
Frequently asked questions
Does a generated CNH number belong to a real driver?
No. The number is random and only passes the check digit calculation. It is meant for software testing and is not a driver's license.
How many digits does a CNH number have?
The CNH registration number has 11 digits. The first 9 are the base number and the last 2 are check digits.