VIN Decoder
Free online VIN decoder. Decode any 17-character Vehicle Identification Number into country, manufacturer, model year, assembly plant, and serial number with ISO 3779 check-digit validation. Client-side, private, bilingual EN/TH.
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What is VIN Decoder?
A VIN Decoder breaks down the 17-character Vehicle Identification Number into its ISO 3779 components: WMI (manufacturer), VDS (vehicle descriptor), check digit, VIS (model year, plant, and serial), plus country and region derived from the first character.
Key Benefits
- Instant decode as you type — no submit button
- ISO 3779 check-digit verification catches typos
- Built-in WMI database for 100+ manufacturers
- Country and region detection from position 1
- 100% client-side — your VIN never leaves the browser
Common Use Cases
- •Used-car buyers verifying a seller’s claims
- •Insurance and registration clerks double-checking entries
- •Auto parts shops matching components to the correct chassis
- •Fleet managers auditing vehicle records in bulk
- •Curious owners learning what their VIN encodes
How to Decode a VIN
- Enter the VIN: Type or paste the 17-character Vehicle Identification Number into the input box. The tool auto-uppercases as you type.
- Watch the status cards: Three cards confirm Length (17 chars), Charset (no I, O, Q), and Check Digit validity in real time.
- Read the breakdown: The decoded table shows WMI, VDS, VIS, country, region, manufacturer, model year, plant code, and serial number with their VIN positions.
- Copy the result: Click Copy to save the full decoded breakdown as labelled text for records or reports.
Key Features
- Decode 17-character VINs to country, manufacturer, model year, and serial
- ISO 3779 check-digit validation with computed vs. actual digit
- Built-in WMI lookup covering 100+ common manufacturers worldwide
- Region and country detection from the first character
- Instant feedback as you type, no submit button needed
- Copy full decoded breakdown to clipboard