UUID Decoder

Decode and validate UUIDs to understand their version, variant, and content.

Example UUIDs

How to Use the UUID Decoder

  1. Enter a UUID in the input field
  2. Click "Decode UUID" to analyze it
  3. View the detailed information about the UUID format, version, and structure
  4. Try the example UUIDs to see how different versions appear in the analysis

About UUID Versions

  • Version 1: Time-based UUIDs generated using the current timestamp and MAC address
  • Version 2: DCE Security UUIDs, similar to version 1 but with different interpretation of some bits
  • Version 3: Name-based UUIDs generated using MD5 hashing
  • Version 4: Random UUIDs generated using random or pseudo-random numbers
  • Version 5: Name-based UUIDs generated using SHA-1 hashing

This tool helps you understand which version your UUID is and what information it contains, useful for debugging, validation, and educational purposes.