Integrity & Security
Verify documents before you submit.
Verify that a file has not been tampered with by computing its MD5, SHA-256, or SHA-512 hash and comparing it against the official checksum — useful for downloaded admit cards, result PDFs, and official notifications. The PAN / Aadhaar Format Validator checks whether an ID number follows the correct structure (CBDT PAN format + UIDAI Verhoeff check-digit) before you type it into a form. All checks run locally in your browser; no document or ID number is ever sent anywhere.
2 of 2 tools available
Hash Verifier
Compute MD5 / SHA-256 / SHA-512 of any file — verify digital evidence integrity in-browser.
PAN / Aadhaar Format Validator
Validate PAN (10-char CBDT format, entity-type + surname-initial decode) and Aadhaar (12-digit UIDAI structure with Verhoeff check-digit) — structure only, not authenticity.