Generators and Validators
Generate and validate Brazilian documents like CPF, CNPJ, CNH and more
Available Tools
CPF Generator and Validator
Generate valid CPFs for testing or validate existing CPFs
CNPJ Generator and Validator
Generate valid CNPJs for headquarters or branches for testing
CNH Generator and Validator
Generate valid CNHs (National Driver's License) for testing or validate existing CNHs
Voter Registration Generator
Generate valid voter registration numbers for testing or validate existing ones. Choose the desired state.
PIS/PASEP Generator
Generate valid PIS/PASEP numbers for testing or validate existing numbers.
How do document generators work?
Brazilian document generators use specific mathematical algorithms to create valid numbers that follow the validation rules for each document. For example, CPF uses check digits calculated through mathematical operations on the first 9 digits of the document.
These algorithms ensure that the generated numbers pass basic system validations, but they don't represent real documents of real people. They are mainly useful for software development testing, form validation, and staging environments.
Is it safe to use online generators?
Yes! Our tool works 100% in your browser, using client-side JavaScript. This means no data is sent to external servers. The entire generation and validation process happens locally on your device, ensuring total privacy and security.
Additionally, we don't store any history of generated numbers, don't collect personal information, and don't use tracking cookies. Your privacy is our priority.
What are generated documents used for?
Documents generated by this tool are mathematically valid but don't belong to real people. They are useful for:
- Software Development: Testing form validations, APIs, and systems that require Brazilian documents
- Staging Environment: Populating test databases with fictional but valid information
- Demonstrations: Creating prototypes and demos without using real data
- Education: Teaching about Brazilian document validation algorithms
Can I use generated CPFs for real registrations?
Validate! No! Generated CPFs and other documents should be used exclusively for testing. Using fake documents in real registrations, even if mathematically valid, is illegal and may constitute a crime of ideological falsehood.
Always use real documents for official registrations, purchases, service contracts, or any situation involving legitimate personal identification.
How to validate an existing document?
Each tool offers a validation tab where you can enter a document number and verify if it is mathematically valid. The validator checks:
- If the format is correct (number of digits)
- If the check digits are correct
- If it's not an invalid sequence (like 111.111.111-11)
Important: mathematical validation doesn't guarantee that the document exists or belongs to someone. It only verifies if the number follows the algorithm rules.
Frequently Asked Questions
Are the generated numbers real?
No. The numbers are mathematically valid (they pass the algorithm validation) but are randomly generated and don't belong to real people.
Does the tool store the generated CPFs?
No. Everything works in your browser and nothing is stored on our servers. When you close the page, the data is lost.
How many documents can I generate at once?
You can generate multiple documents simultaneously, depending on the tool. For example, the CPF generator allows generating up to 50 CPFs at once.
Can I trust the validators?
Yes. The validators use the official validation algorithms for each document. However, validating mathematically doesn't mean the document exists or belongs to a real person.