Pix Key Validator
Check whether a Pix key has a valid format: CPF, CNPJ, email, phone or EVP.
How to use
- 1Paste the Pix key.
- 2Click Process.
- 3See whether the format is valid.
About
Checks the format of Pix keys (CPF, CNPJ, email, phone or random). Useful for avoiding errors in payments.
How to validate a Pix key correctly
The Pix key validator identifies and checks the format of each of the four key types: CPF, email, phone number, and random key (UUID). It helps review keys before registering or sharing them.
Pix accepts four key types. The CPF follows the 11-digit pattern with a check digit, the email has a standard format, the phone uses country code + area code + number, and the random key is a UUID (8-4-4-4-12 format).
The tool automatically detects which type was entered and validates accordingly, flagging when the key does not match any of the formats accepted by the Brazilian Central Bank.
It is important to understand that validating the format does not confirm the key is active or linked to an account. That check is only possible in the banking system, at the time of a transaction.
Examples
- 529.982.247-25 → valid (CPF type).
- name@domain.com → valid (email type) or 123456 → invalid (matches no type).
Limitations
- Validation checks the format, not the existence or status of the key with the Brazilian Central Bank.
- Random keys follow the UUID pattern, but the tool does not check whether they have already been registered.
How to use the Pix key validator
- 1Type or paste the Pix key into the main field.
- 2Click Process.
- 3See the detected type and whether the format is valid.
Frequently asked questions
What are the Pix key types?
There are four: CPF, email, phone number, and random key (UUID). Each has a specific validation format.
Does validation confirm that the key is active?
No. It only checks the format. The status of the key can only be verified in the banking system.
Do I need to inform the key type?
No. The tool detects the type automatically based on the entered format.
Other tools
CPF Validator
Validate CPF numbers with verification digits.
CNPJ Validator
Validate CNPJ numbers.
Email Validator
Validate email addresses.
URL Validator
Validate if a URL is valid.
CEP Validator
Validate Brazilian CEP format.
Credit Card Validator
Check whether a card number passes the Luhn algorithm and see its brand.