CPF Generator

The CPF Generator tool creates synthetically valid Brazilian CPF numbers for testing, development, and QA workflows. It accepts a desired quantity and optional formatting, returning a batch that adheres to CPF structural rules (base digits plus two check digits).
For each item, a random 9-digit base is generated. The tool computes the first check digit and the second check digit using the standard CPF algorithm, producing an 11-digit number. If a mask is requested, digits are formatted as 000.000.000-00.
Audience includes developers validating form fields, QA engineers testing identity flows, data scientists building synthetic datasets, and staging environments requiring realistic identifiers without exposing real individuals.
Key differentiators include bulk generation, optional masks, reproducibility via seed, and safety controls to ensure generated numbers are not tied to real identities. It is designed for speed, reproducibility, and easy integration into testing pipelines.