CNPJ Generator
Generate valid CNPJs for testing and development (numeric and alphanumeric 2026)
Legal Disclaimer
This tool generates FICTITIOUS data for testing and development purposes. Using this data for fraud or illegal activities is a crime. By using this tool, you agree that:
- The generated data is completely fictitious
- Usage is exclusively for testing and development
- You take full responsibility for the use of the data
FAQ
What is CNPJ?
CNPJ (Cadastro Nacional da Pessoa Jurídica) is the Brazilian tax identification document for companies, consisting of 14 characters.
Are the generated CNPJs real?
No! The CNPJs are generated using the official validation algorithm, but they are completely fictitious.
What is a CNPJ generator used for?
It's used for system testing, form validation and software development.
What is the alphanumeric CNPJ?
It's the new format that will come into effect in July 2026. It uses letters and numbers in the first 12 characters, expanding the possible combinations from 100 million to nearly 3 trillion. Existing CNPJs will not be changed.