ID & Format Validators tools

Aadhaar Number Checksum Validator (Verhoeff)

Check whether a 12-digit Aadhaar number passes the Verhoeff checksum used by UIDAI — entirely offline in your browser, with your number never transmitted or stored.

India Driving Licence Number Format Validator

Check whether an Indian driving licence number matches the standard state code + RTO code + year + serial structure, and decode the issuing state — in your browser.

France NIR (Sécurité Sociale) Checksum Validator

Check a French NIR / social security number's 15-digit structure and mod-97 control key, and decode the gender, birth year, and birth month — in your browser.

Germany Steuer-ID Checksum Validator (ISO 7064)

Check whether an 11-digit German Steuerliche Identifikationsnummer passes its ISO 7064 MOD 11,10 check digit — instantly, entirely in your browser.

GSTIN Format & Checksum Validator

Check any Indian GSTIN's structure and Luhn mod-36 checksum, and decode its state code, embedded PAN, and entity number — instantly, in your browser.

IFSC Code Format Validator & Bank Decoder

Check whether an 11-character Indian IFSC code matches the RBI structure, and decode its 4-letter bank code — entirely in your browser, structure only.

Ireland PPS Number Format & Checksum Validator

Check whether an Irish Personal Public Service (PPS) number's 7 digits and check letter pass the official mod-23 checksum — instantly, in your browser.

Italy Codice Fiscale Checksum Validator & Decoder

Validate a 16-character Italian Codice Fiscale's check character and decode the embedded birth year, month, day, and gender — entirely in your browser.

Netherlands BSN Checksum Validator (Elfproef)

Check whether a 9-digit Dutch Burgerservicenummer passes the official 11-proof (elfproef) checksum — instantly, entirely in your browser, nothing transmitted.

PAN Card Format Validator & Decoder

Check whether an Indian PAN matches the official AAAAA9999A structure and see what its 4th character (holder type) and 5th character mean — all in your browser.

TAN Format Validator (Tax Deduction Account Number)

Check whether an Indian TAN matches the official AAAA12345A structure used for tax deduction/collection account numbers — instantly, in your browser.

UAN Format Validator (EPFO Universal Account Number)

Check whether a number matches the 12-digit EPFO Universal Account Number format — instantly, entirely in your browser, nothing transmitted or stored.

UK National Insurance Number Format Validator

Check whether a UK National Insurance number matches HMRC's two-letter prefix, six-digit, one-letter suffix format — instantly, entirely in your browser.

India Vehicle Registration Number Format Validator

Check whether an Indian vehicle registration number matches the standard state-RTO-series-number plate structure, and decode the issuing state — in your browser.

Voter ID (EPIC Number) Format Validator

Check whether an Indian Voter ID / EPIC number matches the standard 3-letter, 7-digit structure used on Election Commission voter ID cards — in your browser.