Built a Free Gerador de CPF Tool for Developers and Testers

Hey Indie Hackers 👋

As a developer, I was often stuck when testing Brazilian systems that required a CPF number. Using real personal data never felt safe, and finding a simple, trustworthy generator was harder than I expected.

So I built gerador-br.com — a free, browser-based gerador de CPF that creates valid random CPFs in one click.

✅ Key Features:

• Generate single or multiple CPFs instantly

• Copy to clipboard with one click

• Works on desktop and mobile, no install needed

📊 Early Results:

• 3,000+ CPFs generated in the first month

• Users are mostly developers, QA testers, and students

• Most requested feature: CNPJ generator + CPF validator

🛠️ Next Steps:

• Add CNPJ generator for business testing

• Build a CPF validator tool

• Release a public API for developers

I’d love to get your feedback:

• What other data generators would be helpful for you?

• Should I open-source the generator logic so others can contribute?

Try it here: gerador-br.com — feedback and ideas are very welcome! 🙏