Get in touch

Email

The contact channel is email: hello@4devsbr.com. There is no contact form or social media account. The mailbox is still being set up, so replies may take a few days. Messages in English, Portuguese or Spanish are welcome.

What to write about

• Bug reports: tell us which tool, what you did, what you expected and what happened. Including the test value, your browser and the page language helps a lot.
• Algorithm corrections: if a generator or validator disagrees with the official rule, send the failing case and, ideally, the source (regulation, manual or the issuing authority's page). Corrections with a source are reviewed first.
• Tool suggestions: tell us which Brazilian document or test data you need and the context (QA, database seeding, sandbox integration). RG, state tax registration (IE), bank account and boleto tools are already in the queue.

Before you send

Please do not send real documents, passwords or personal data: no tool needs them to be fixed. For data protection requests, see the Privacy Policy. To learn who maintains the project, visit About.