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Developer Utility

UUID Generator

Generate high-entropy, collision-resistant unique identifiers. Industry-standard v4 UUIDs for any workload.

Configure

Validator

Results
0 Generated
Export Format

What is a UUID?

A Universally Unique Identifier (UUID) is a 128-bit number used to identify information in computer systems. While the probability that a UUID will be duplicated is not zero, it is close enough to zero to be negligible.

  • Version 4Generated using random numbers. This is the most common standard for general purpose identification.
  • Collision ResistantWith 3.4 x 1038 possible combinations, you can generate 1 billion UUIDs every second for 100 years without much risk of collision.

FAQs

Is this generator secure?

Yes. We use the Web Crypto API for cryptographically strong random numbers.

Are my UUIDs private?

Absolutely. All generation happens locally in your browser. No data ever leaves your device.

Which version should I use?

Version 4 is the modern standard and recommended for almost all use cases unless you need time-ordered sorting.