Single UUID
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UUID Version

UUID Generator - Generate UUID v1/v3/v4/v5 Online

Generate UUIDs online, including UUID v1, v3, v4, and v5. Supports batch generation and UUIDs without hyphens.

UUID version guide

  • UUID1:Time-based UUIDs for workflows that need chronological ordering.
  • UUID3:MD5 namespace-based UUIDs where the same input should produce the same output.
  • UUID4:Random UUIDs, the most common choice for general unique identifiers.
  • UUID5:SHA-1 namespace-based UUIDs, similar to UUID3 with a stronger hash.

How to use

  1. Choose a UUID version: UUID1, UUID3, UUID4, or UUID5.
  2. Choose whether to remove hyphens.
  3. For a single UUID, click Refresh or Copy.
  4. For batch generation, enter a count from 1 to 3000, click Generate, then Copy all results.

Common use cases

  • Database primary keys and distributed system IDs
  • API request IDs and log tracing
  • Unique filenames for uploads
  • Session IDs and token generation