Free CPF Validator & Formatter
Use this free online CPF validator and formatter to check Brazilian CPF numbers, National IDs, and international phone numbers instantly.
CPF Validator & Formatter (Brazil)
Enter your 11-digit CPF number to format and validate it instantly using Brazil’s official checksum algorithm.
National ID Validator (Global)
Validate IDs like Aadhaar (India), SSN (USA), or NI (UK). Automatically checks structure, length, and checksum rules.
Phone Number Validator & Formatter
Validate and format international phone numbers into E.164 format with regional presets for country codes.
Frequently Asked Questions (FAQ)
What is CPF validation?
CPF validation ensures your Brazilian tax ID (Cadastro de Pessoas Físicas) is correctly formatted and checksum verified.
Can I use this for Aadhaar or SSN?
Yes! Our National ID validator supports Aadhaar, SSN, NI, and SIN formats with region-specific logic.
Is this CPF tool free?
Absolutely. 100% free, no registration, and works instantly on all devices.
Why Choose This CPF Validator?
- ✅ 100% Free — No Sign-up or API Required
- 📱 Works on All Devices (Responsive)
- 🔍 SEO-optimized for Google & Bing
- ⚙️ Real-time validation logic (CPF, ID, Phone)
- 🌍 Multilingual Support (EN/PT/ES)
Free CPF Validator & Formatter Tool
Quickly use our CPF validator and formatter to check and format Brazilian CPF numbers, National IDs, and phone numbers. Therefore, no sign-up is needed.
CPF Validator and Formatter for Brazil
Our CPF validator and formatter instantly checks Brazilian CPF numbers. Simply enter a raw CPF (e.g., 12345678900). It formats to 123.456.789-00.
National ID Validator
Easily validate National IDs like US SSN or Indian Aadhaar. Select a region and enter your ID quickly.
Phone Number Formatter
Quickly format phone numbers with our tool. Select a region and get E.164-standard output (e.g., +551234567890).
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How Our CPF Validator and Formatter Works
Brazilian CPF Validation
Our CPF validator and formatter uses Brazil’s checksum algorithm. It multiplies digits by weights (10-2, 11-2). Then, it verifies check digits.
National ID Validation
We validate IDs like US SSN or Aadhaar. Each region has specific rules. Therefore, our tool ensures accuracy.
Phone Number Formatting
Our tool formats phone numbers to E.164. It checks country codes and length. Additionally, it ensures valid output.
FAQs About CPF Validator and Formatter
- What is a CPF validator and formatter? Our tool checks and formats Brazilian CPF numbers accurately.
- How do I validate a phone number? Select a region and enter your number. Our tool formats it to E.164.
- Is the CPF validator free? Yes, our CPF validator and formatter requires no sign-up.
- Can I validate bulk CPF numbers? Yes, use our CPF Validator API.
- Is this tool secure? Our CPF validator and formatter ensures privacy. See our privacy policy.
- How accurate is it? Our CPF validator and formatter uses Brazil’s official algorithm for 100% accuracy.
Trusted External Resources
Official CPF and tax information.
SSN validation guidelines.
Official Aadhaar information.
Canadian SIN validation rules.