Brazilian driver license number in privacy-first sandboxes

This page focuses on using synthetic Brazilian CNH in test scenarios. The goal is plausible data without touching real identifiers or implying official validation.

Testing use onlyThe generated CNH is synthetic. It does not authorize driving, does not query official databases and must not be used for real registrations.

Generated CNHCheck digits

123 456 789-00

Base: 123456789
Check digits: 00
Length: 11

Generation happens locally in the browser. Analytics receives only action, status, type and format — never the generated CNH.

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How to use synthetic Brazilian driver license number safely

The tool generates synthetic Brazilian CNH following 9-digit base with two modulo-11 check digits. That is enough for masks, fixtures and contract tests that depend on plausible format.
mathematical validity does not prove licensing, record status, class or driving rights.
Use it for staging registrations, mask validation and check-digit tests. Do not send the value to real verification, official registration, credit, employment, KYC or government services.

Useful test scenarios

Form fixture

Input: test form → required identifier field
Expected output: Brazilian driver license number → plausible synthetic value

Use it when a form needs to accept Brazilian driver license number without depending on real data.

Local rule test

Input: mask / prefix / check digit
Expected output: accepted locally → never treated as verified identity

The local rule covers 9-digit base with two modulo-11 check digits; it does not cover official lookup or registry existence.

Full tool FAQ

Is the generated CNH a real document?

No. It only follows the mathematical format used by form validators.

Does the tool query an official database?

Why do check digits matter in tests?

Can I use it in staging?

Does CNH include a state code like voter ID?

Is the number stored locally?

Does this replace official validation?

When should I use fixed fixtures?

Frequently asked questions

Is synthetic Brazilian driver license number a real document?

No. It is a test value with plausible format or digits, without lookup in official databases.

What is the key limitation when using Brazilian driver license number in tests?

mathematical validity does not prove licensing, record status, class or driving rights.

How can privacy risk be reduced?

Generate the value in the browser, do not store it in URLs or logs, and ensure analytics receives only action metadata, never the identifier.