Numbers

Serial Number Generator

Serial numbers are unique identifiers stamped on products, licences, assets, and equipment for tracking and authentication purposes. This serial number generator lets you define a custom format pattern using simple placeholders: X for a random letter, N for a digit, and * for either. Create serial numbers in any style — from product licence keys to equipment asset tags. Generate in bulk for spreadsheets, inventory systems, or test databases with full control over length and structure.

Use Cases

  • •Product licence key generation
  • •Asset and inventory tagging
  • •Warranty card serial numbers
  • •Software activation codes
  • •Test data for databases

FAQ

How do I create a custom serial number format?

Use X for a random letter, N for a random digit, * for either, and any other character (like - or /) as a literal separator.

Can I generate serial numbers in bulk?

Yes — set the count up to 100 and copy all generated serials at once.

Are the serial numbers guaranteed unique?

They are randomly generated so uniqueness is highly probable for long formats, but not mathematically guaranteed across large volumes.

What is a common serial number format?

Many products use patterns like XXXX-NNNN-XXNN or NNNN-XXXX-NNNN — segments of letters and numbers separated by hyphens.