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UUID v4 Generator

Generate RFC 4122 compliant version-4 universally unique identifiers.

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About UUID v4 Generator

A UUID (Universally Unique Identifier) is a 128-bit label used for information in computer systems. Version 4 UUIDs are randomly generated to guarantee uniqueness across distributed database records and enterprise application nodes.

Key Advantages

  • RFC 4122 Standard: Guaranteed compatibility with PostgreSQL, MySQL, and REST APIs.
  • Collision Proof: Probability of generating duplicate UUIDs is practically zero.
  • Instant Generation: Create unique keys in sub-millisecond execution time.

Frequently Asked Questions

What is the difference between UUID v1 and v4?

UUID v1 uses MAC addresses and timestamps, which can leak system details. UUID v4 uses pure random numbers, providing higher privacy and security.