CPF and CNPJ Formatter

Format CPF and CNPJ with masks, remove punctuation, and copy the result in the browser without validating registration or checking Receita Federal.

Format document

Paste or type a CPF or CNPJ to see the masked version and the punctuation-free version.

Document

Formatting runs in the browser. The document is not placed in the URL by default.

CPF or CNPJ

One value at a time. Common separators are removed; uncommon symbols show a warning.

Type

Primary output

Both versions appear in the result; this option chooses the highlighted one and goes into the safe link.

By default, the link stores only type and primary output.

Include document in the shared link

The current link does not include the typed CPF or CNPJ.

How parsing works

The tool only applies or removes masks. It does not query registries or recalculate check digits.

Mask

CPF uses 000.000.000-00 and CNPJ uses 00.000.000/0000-00.

No punctuation

Dots, slashes, hyphens, and common spaces are removed to produce the clean value.

No validation

A formatted document does not prove check digits match or that an active registration exists.

CNPJ with letters

New CNPJ registrations may use letters in the first 12 positions starting in July 2026.

Privacy

The typed value stays out of the URL query and enters the hash only when you enable content sharing.

Quick questions

Is the CPF or CNPJ sent to the server?

No. Formatting happens in the browser. The value only appears in a link if you enable the include document option.

Is formatting the same as validating CPF or CNPJ?

No. Formatting only applies or removes punctuation. To recalculate check digits, use the CPF or CNPJ validation pages.

What is the CPF mask?

The mask is 000.000.000-00, with 11 numeric digits.

What is the CNPJ mask?

The mask is 00.000.000/0000-00, with 14 positions.

Does the formatter accept CNPJ with letters?

Yes. Letters are accepted in the first 12 positions of alphanumeric CNPJ and uppercased. The final two positions remain numeric.

Can I share a link with the document filled in?

Yes, but only by enabling the include document option. The value stays in the link hash and can be read by anyone who receives the URL.

About the CPF and CNPJ formatter

The formatter applies CPF and CNPJ masks, removes common punctuation, and shows warnings for symbols, letters in CPF, letters in final CNPJ positions, or extra characters. It does not check Receita Federal, registration, identity, or check digits.

How to format CPF or CNPJ online

Paste the value, choose automatic detection, CPF, or CNPJ, and copy the masked or punctuation-free version. Alphanumeric CNPJ is accepted in the first 12 positions to reflect new registrations planned from July 2026.

CPF and CNPJ Formatter

Document

Share

How parsing works

Is the CPF or CNPJ sent to the server?

Is formatting the same as validating CPF or CNPJ?

What is the CPF mask?

What is the CNPJ mask?

Does the formatter accept CNPJ with letters?

Can I share a link with the document filled in?

About the CPF and CNPJ formatter

How to format CPF or CNPJ online

Document

Share

How parsing works

Is the CPF or CNPJ sent to the server?

Is formatting the same as validating CPF or CNPJ?

What is the CPF mask?

What is the CNPJ mask?

Does the formatter accept CNPJ with letters?

Can I share a link with the document filled in?