Free Aadhaar Number Validator
Instantly verify Aadhaar number format using the Verhoeff algorithm. Our free validation tool checks if an Aadhaar number is correctly formatted — completely private with client-side processing.
Learn more: How businesses use Aadhaar validation | Privacy & legal considerations
This tool is free to use and processes all data locally in your browser.
Accurate Validation
Our system performs thorough format checks using the Verhoeff algorithm to ensure validation accuracy.
Instant Results
Get validation results immediately with our fast client-side verification. No server delays or waiting.
Secure & Private
Your data is protected with client-side processing. No information is stored or transmitted.
What is Aadhaar Number Validation?
Aadhaar number validation is the process of checking whether a 12-digit Aadhaar number follows the correct format and passes mathematical verification using the Verhoeff algorithm. This checksum algorithm helps detect common errors like typos, transpositions, and invalid digits.
Important: Format validation checks if a number looks valid but does not verify if it has been officially issued by UIDAI or confirm identity. For official identity verification, you need to use UIDAI’s authentication services.
Common Use Cases
- KYC processes: Pre-validate Aadhaar numbers before initiating costly verification procedures
- Payroll systems: Ensure employee Aadhaar numbers are correctly formatted to prevent payment failures
- Form validation: Provide instant feedback to users entering their Aadhaar number
- Data quality: Clean and verify existing database records
Read more: How businesses use Aadhaar validation for KYC, payroll, and onboarding
Privacy and Security
Our Aadhaar validator processes all validation entirely in your web browser. The Aadhaar number you enter never leaves your device, is not sent to any server, and is not stored anywhere. This client-side approach ensures maximum privacy and security for your sensitive information.
Learn more: Privacy and legal considerations when using Aadhaar data
Frequently Asked Questions
Have questions about Aadhaar validation? Check out our comprehensive FAQ section covering topics like how validation works, what the tool can and cannot do, and safety considerations.