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UUID Generator

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UUID Examples

UUID v4 (Random):
550e8400-e29b-41d4-a716-446655440000
UUID v1 (Timestamp):
c4e8a7e0-c8d1-11ef-8f5d-0242ac120002

About UUIDs

A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. They are designed to be unique across space and time.

  • UUID v4: UUID v4: Generated using random or pseudo-random numbers. This is the most commonly used version.
  • UUID v1: UUID v1: Generated using timestamp and MAC address. Contains time-based information.

Common use cases: Database primary keys, session IDs, file names, distributed systems, unique references.

Generate unique identifiers (UUIDs) in various formats for your applications

uuidguidunique ididentifier
# UUID Generator Generate universally unique identifiers (UUIDs) for your applications. Supports multiple UUID versions including v4 (random) and v1 (timestamp-based). ## Features - Generate UUID v4 (random) - Generate UUID v1 (timestamp-based) - Bulk generation - Copy to clipboard - No server required - all client-side ## About UUIDs A UUID (Universally Unique Identifier) is a 128-bit number used to identify information in computer systems. The term GUID (Globally Unique Identifier) is also used, primarily in Microsoft systems. Format: `xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx`