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Utilities Tool

Aadhaar Number Validator

Validate Aadhaar number format using the official Verhoeff checksum.

Privacy-first workflows
Fast and simple
100% Free, no signup
✗ Invalid
Failed Verhoeff checksum — this is not a valid Aadhaar number
Privacy: Validation runs in your browser. Nothing is sent to a server. Don't paste your real Aadhaar into untrusted websites — there's no need to share it just to check format.
How it works

How to validate an Aadhaar number

STEP 01
Enter the 12-digit Aadhaar number.
STEP 02
See whether it passes the Verhoeff checksum used by UIDAI.
STEP 03
Note: format check only — doesn't confirm the number is issued.
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FAQ

Common questions