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Daily · Privacy tool

Aadhaar Validator

Check whether a 12-digit Aadhaar number passes UIDAI's Verhoeff checksum. Useful when entering Aadhaar manually — catches typos before submission.

🔒 Runs entirely in your browser. Nothing is sent or stored anywhere.

What this tool does and doesn't do

Does: verify that the 12 digits form a valid Verhoeff checksum and don't start with 0 or 1 (UIDAI rule). Catches single-digit typos and obviously fake numbers.

Doesn't: connect to UIDAI to verify the Aadhaar actually exists or matches a person. For real verification, use the official myAadhaar portal's “Verify Aadhaar Number” service.

Why share masked Aadhaar instead

For non-mandatory verification, share a masked Aadhaar PDF (last 4 digits only). The full Aadhaar plus your photo can be used for identity fraud — open SIM cards, bank accounts, instant loans.