Validate CNHs instantly using the official Brazilian algorithm. Free tool for forms, systems and development. Local validation, no registration, immediate results.
CNH Validator
Enter a CNH to check if it's valid
About CNH Validator
Professional tool that validates CNHs using the official Brazilian algorithm. Instant and local validation, no data sent to servers. Ideal for forms, systems and development.
Why use our tool?
✓Official Brazilian algorithm
✓Accepts any CNH format
✓Instant validation
✓100% local processing
How to use
• Enter complete CNH (11 digits)
• Works with or without formatting (123.456.789-10 or 12345678910)
• Validate CNHs before using in forms
• Use only for legitimate validation
ℹ️ Important: Validation is done locally in your browser. No data is sent to our servers, ensuring complete privacy and security.