Generators

Brazilian Postcode Generator

Generate CEP codes in the Brazilian format to test forms and sign-up flows.

How to use

  1. 1Click Generate.
  2. 2See the fictional CEP.
  3. 3Copy it.

About

Generates fictional CEPs with valid format for testing forms and systems. For testing only.

How to generate fictional postal codes

The UtilNexo postal code generator creates fictional CEPs (Brazilian postal codes) in the Brazilian format, with eight digits. It is useful for filling test forms and simulating registrations without using real addresses.

The Brazilian CEP has eight digits, usually formatted as 00000-000. The tool generates numbers that follow this structure, including the region digit, which indicates the range of Brazilian states.

The generated CEPs are fictional and do not correspond to any real address. They have the correct formatting but lead nowhere — the goal is only to simulate realistic data.

You can generate one CEP at a time or several at once, with or without mask. All processing is local and instant, in the browser.

Examples

  • Generate with mask → 01310-100 (standard format with hyphen).
  • Generate without mask → 01310100 (only the eight digits).

Limitations

  • The CEPs are fictional and do not correspond to real addresses, so they are not valid for delivery or mail.
  • The tool generates numbers with a valid structure, but does not validate whether the CEP exists in the postal service database.

How to use the postal code generator

  1. 1Choose the format (with or without mask) and the quantity.
  2. 2Click Generate.
  3. 3Copy the generated CEPs.

Frequently asked questions

Are the generated CEPs real?

No. They are fictional and correspond to no address, serving only for testing.

What does the first CEP digit mean?

It indicates the region of Brazil: from 0 (Greater São Paulo) to 9 (inland and other states), following the postal range.

Can I use it for a real registration?

No. Fictional CEPs are not accepted for delivery; use them only in test forms.

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