fingerprint
Aadhaar Format Validator
Validates format & Verhoeff checksum. Your Aadhaar never leaves your device.
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About Verhoeff Algorithm
The Verhoeff algorithm is a checksum formula for error detection. UIDAI uses it as the last digit of every Aadhaar number to detect entry errors like single-digit mutations and transpositions.
shield Zero data transmission. All checks run locally in JavaScript.