Terms of Use

By using DevBR Kit you agree to these terms. If you do not agree, please do not use the site.

Purpose

Fictitious data for software testing. Using fake documents for fraud is a crime (Brazilian Penal Code, arts. 297–299, 307).

The tools generate and validate numbers with the correct format and check digits for use in test fixtures, form validation tests, QA, demo databases and sandbox integrations. Generated values do not identify real people, companies or vehicles and have no legal validity.

Forbidden uses

You must not use the generated data or the site to:

• commit fraud or any other unlawful act;
• impersonate someone or create false identities;
• register, open accounts or make purchases on real services;
• bypass identity verification (KYC), credit checks or anti-fraud systems;
• overload the site with abusive automated requests.

Test cards

Generated card numbers only pass the Luhn check and follow card network prefixes. They are not real cards, have no balance or credit limit and will not work for purchases. To test payments, use the test numbers and sandbox environment provided by your payment gateway.

Coincidence with real documents

Because numbers are generated randomly within the official rules, a value may coincidentally match a real document. That does not authorise using the number for anything other than software testing, and any misuse is solely the responsibility of whoever commits it.

No warranty

DevBR Kit is provided free of charge, "as is", without warranty of any kind, including accuracy of the algorithms, availability or fitness for a particular purpose. Check the rules against official sources before relying on them in production.

Limitation of liability

To the fullest extent permitted by law, the maintainer is not liable for any direct or indirect damage arising from the use of, or inability to use, the site, nor for misuse of generated data by third parties. You alone are responsible for how you use the tools.

Changes and governing law

These terms may change at any time; the version published on this page is the one in force. They are governed by the laws of the Federative Republic of Brazil, and the courts of Belo Horizonte, Minas Gerais, have jurisdiction over any dispute. See also the Privacy Policy or contact us.

Last updated: 13/11/2026 (13 November 2026).