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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
Validate VIN quality in single or bulk mode before accepting customer submissions.
VINs are normalized to uppercase and stripped of separators.
VIN needs attention
Fix the issues listed below before using this VIN.
- VIN is empty.
- Length
- Invalid
- Characters
- Contains invalid chars
- Check digit
- Unavailable
- Manufacturer
- Unknown
- Model year
- Unknown
Bulk validation audit
Paste one VIN per line to produce an audit table.
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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