Desenvolvimento
Gerador de CPF
Use apenas em ambientes de teste, homologação ou desenvolvimento.
CPF
Programming
CPF Generator
documents for testing
Generate mathematically valid CPF numbers for form testing, registration flows, API integrations, and sandbox environments. Generated CPFs pass digit verification but do not belong to any real person.
How to use
- 1Check the 'Format' option if you want the number with dots and a dash (e.g., 123.456.789-00).
- 2Click 'Generate' to create a structurally valid CPF number.
- 3Use the 'Copy' button to paste the number wherever you need it.
- 4Generate as many numbers as you want — each click creates a new random combination.
Practical examples
Fill out test forms
Generate valid CPFs to test registration validation in systems during development.
Seed staging databases
Use several generated CPFs to simulate user records without exposing real personal data.
Test formatting masks
Generate the number with and without formatting to check whether your application handles both formats correctly.
Frequently asked questions
Do generated CPFs belong to real people?
No. The numbers are generated mathematically to satisfy the verification digit algorithm, but are not linked to any real person.
Is it illegal to use a generated CPF for testing?
Using them in development and testing environments is legitimate. Fraudulent use — to deceive systems, make real registrations, or gain undue advantages — is illegal.
Can I generate a CPF with formatting (dots and dash)?
Yes. The tool generates the CPF in both formats: with mask (000.000.000-00) and without mask, to suit different use cases.