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UUID Generator

Produce RFC 4122 compliant UUID version-4 identifiers using browser crypto.getRandomValues(). Generate 1, 5, 10, or 20 UUIDs with hyphen and uppercase formatting options.

Your input is processed locally in your browser and is not sent to our server.
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Key Features

  • Cryptographically secure pseudo-random generation (CSPRNG)
  • Batch generation (1, 5, 10, 20 UUIDs)
  • Uppercase vs Lowercase toggle
  • Hyphenated vs Clean toggle
  • Individual and bulk copy to clipboard
  • Completely local browser execution

How to Use UUID Generator

  1. 1Select how many UUIDs you need (1, 5, 10, or 20).
  2. 2Toggle uppercase letters or hyphen removal if required.
  3. 3Click 'Generate UUIDs' to produce fresh identifiers.
  4. 4Click 'Copy All' or copy individual entries.

Frequently Asked Questions

Are these UUIDs collision-safe?

Yes, UUID v4 has 122 bits of randomness. The probability of generating duplicate UUIDs is mathematically negligible (1 in 2.71 quintillion).

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