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Online UUID Generator

Generate unique identifiers (UUIDs) instantly with various formatting options. Perfect for database keys, API tokens, and distributed system identifiers.

Generated UUID

UUID Information

  • Generated UUIDs are version 4 (random) following RFC 4122 standard
  • 128-bit identifiers with practically guaranteed uniqueness
  • Perfect for database primary keys, API tokens, and distributed systems
  • Generation happens entirely in your browser - completely secure

Generator Settings

max 100

f47ac10b-58cc-4372-a567-0e02b2c3d479

F47AC10B-58CC-4372-A567-0E02B2C3D479

{F47AC10B-58CC-4372-A567-0E02B2C3D479}

urn:uuid:f47ac10b-58cc-4372-a567-0e02b2c3d479

f47ac10b58cc4372a5670e02b2c3d479

Frequently Asked Questions

A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. UUIDs are practically guaranteed to be unique across all systems and time, making them perfect for database primary keys, API tokens, and distributed system identifiers.