VIN Check-Digit Validator
Validate a 17-character VIN against 49 CFR 565.15 / ISO 3779: length, character set (no I/O/Q) and the position-9 check digit, with the position-by-position math
vin-check-digitv49 CFR 565.1549 CFR §565.15 (Table III transliteration, Table IV weights, Table V remainder) + ISO 3779
Workspace
Local or server · same path as API
text/vinChecked in your browser. The VIN is never sent anywhere.
0 characters
Paste a VIN — the verdict appears as you type, no button.
Structure and check digit only (49 CFR 565.15 / ISO 3779). This is not a vehicle-history lookup.
API
forge.text.vinSame contract as the page. Use an authenticated key in production.
curl -X POST 'https://forge.nebutra.com/v1/tools/text/vin/invoke' \
-H 'Authorization: Bearer sk-sailor-…' \
-H 'Content-Type: application/json' \
-d '{
"example": true
}'