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🛠️ VIN Checker
Verify VIN structure, length, and check digits instantly. Highlight invalid characters, model year mismatches, and manufacturer insights for compliance.
VIN Checker
Verify Vehicle Identification Numbers for length, illegal characters, and check digit accuracy before accepting customer submissions.
Run the Mod 11 check digit calculation and highlight any structural issues instantly.
We automatically strip spaces and convert VINs to uppercase.
VIN needs attention
Review the issues below to correct the VIN before using it.
- VIN is empty.
- Length
- Incomplete
- Characters
- Contains invalid letters
- Check digit
- Unavailable
- Manufacturer
- Unknown
- Model year
- Unknown
How to use the VIN checker
- Paste a 17-character Vehicle Identification Number into the validator input. We automatically trim spaces and convert the VIN to uppercase.
- Choose Validate to run the checksum and structural tests, or switch to Decode for a breakdown of the WMI, VDS, and VIS segments.
- Review any highlighted issues—incorrect length, banned characters, or Mod 11 check digit mismatches—before accepting the VIN in your workflow.
What this VIN checker validates
Every VIN is analysed character-by-character to make sure it complies with ISO 3779 requirements. The tool flags disallowed letters such as I, O, and Q, confirms the model year code, and verifies the manufacturer region using our WMI database. When the checksum passes you can confidently store or forward the identifier to downstream systems.
- Structural integrity across the WMI, VDS, and VIS blocks
- Mod 11 check digit accuracy with position-by-position weighting
- Model year and assembly plant lookups for additional assurance
Why routine VIN validation matters
Catching transcription errors early prevents costly database updates, incorrect warranty claims, and compliance issues with finance partners. Integrate this VIN checker into intake forms, customer service reviews, or dealership audits to keep your vehicle data clean and trustworthy.
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