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Tool

ID Generator

Generate fictitious ID numbers with check digits, in batches and with or without punctuation, to test registrations and systems, free of charge and without registration.

Os números gerados são aleatórios e matematicamente válidos apenas quanto aos dígitos verificadores. Não pertencem a pessoas reais e não são consultados em bases oficiais. Destinam-se exclusivamente a testes de sistemas. Utilizar documentos falsos para fraude é crime (art. 299 do Código Penal).

RG Generator creates fictitious ID numbers in the format used by test systems, in the São Paulo state standard, with the check digit calculated, so you can fill out registrations and validate systems without having to use a real person's document. You choose the quantity, generate it with or without punctuation, and copy everything with one click. It is an online tool, free and without registration.

What is it

The ID Generator is a micro-tool that produces fictitious ID numbers in the format of the São Paulo General Registry (SSP-SP): 8 digits followed by a check digit, calculated from weights from 2 to 9 and the rest of the division by 11. This is the model most used as a reference in system tests, even when the registry is not specifically from São Paulo. The idea is simple: when a programmer, a quality analyst (QA) or a student needs to test a registration screen, they need a number that passes form validation. Typing someone else's real document is not a good idea, and inventing lucky numbers almost always gets stuck in validation because of the check digit.

This is where the tool helps. It generates, in seconds, one or several numbers that respect the expected structure and the check digit, allowing you to continue with the test. It is worth reinforcing an important point: the numbers created here are fictitious and are only used to test software. They do not belong to anyone, do not consult any official database and should not be used to impersonate anyone else. Using false document data to deceive someone or commit fraud is a crime provided for by law.

How to use

Using the generator is very quick:

  • Set the quantity: choose how many numbers you want to generate at once, from 1 to 50.
  • Choose the format: check the "With punctuation" box to receive the number in the pattern 00,000,000-0, or uncheck it to receive only the digits, without dots or dashes.
  • Click on "Generate ID" to create the list of numbers on the spot, with the check digit calculated.
  • Copy a specific number by clicking "Copy" next to it, or use the "Copy All" button when generating more than one, to take the entire list at once.
  • Paste the numbers into the field of the system or form you are testing.

Everything happens directly in your browser, instantly, without having to install anything.

Tips

  • Use the numbers only in test, approval or development environments, never in real registrations.
  • If your system requires the number without punctuation, uncheck the "With punctuation" box before generating.
  • Batch generating, with up to 50 numbers at once, use the "Copy All" button to quickly populate a spreadsheet or test database.
  • Combine this tool with the CPF or CNPJ generator when you need to create a more complete test registration.
  • Remember that a valid ID number in the format does not mean that it actually exists: it is just fictitious data for your software to process.

Perguntas frequentes

Is the generated ID really valid?

No. The number follows the format used by test systems and contains the check digit, but is completely fictitious. It does not belong to any person and does not consult official databases. It is only for testing software.

What is an ID generator for?

Used to fill out forms and registrations during system development and testing. So the programmer or QA analyst validates the screen without using a person's actual document. It is also useful for students who are learning to program.

Is it a crime to use a generated ID?

Using the tool to test your own software is no problem. What a crime is using false document data to impersonate someone else, deceive someone or commit fraud. Never use the numbers generated in real situations or to harm third parties.

Is the tool free and does it require registration?

The tool is completely free and does not require any registration or login. You open the page, generate the number and copy it with one click, as many times as you want.

Can I generate multiple ID numbers at once?

Yes. Define the desired quantity, up to 50, in the quantity field before clicking on Generate RG, and the tool creates all the numbers at once. Then just use the Copy all button to take the entire list, or copy a specific number at a time.

The generated ID follows the format of which state?

The generator follows the model of the São Paulo General Registry (SSP-SP), with 8 digits and a check digit calculated from weights from 2 to 9. This is the format most used as a reference in system tests, even when the registry is not specifically from São Paulo.

Can you generate the ID without punctuation, just with the numbers?

Yes. Uncheck the With punctuation option before clicking on Generate ID and the tool delivers the number with just the digits and the checker, without dots or dashes. It is useful when the tested system does not accept special characters in the field.

Sobre este conteúdo

Escrito por:
Equipe Ferramenta Grátis
Atualizado em:
3 de julho de 2026

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