UUID / GUID Generator

Generate cryptographically random UUID v4 identifiers in bulk (1-100) with custom format options.

Loading interactive UUID / GUID Generator interface...

How to Use UUID / GUID Generator

  1. Select how many UUIDs to generate (1 to 100)
  2. Toggle uppercase/lowercase or hyphens
  3. Click Copy All.

Technical Specifications & Formula

Utilizes crypto.randomUUID() and crypto.getRandomValues() according to RFC 4122 specifications.

Frequently Asked Questions

Are these UUIDs truly unique?

The chance of a collision in UUID v4 is 1 in 2^122, making unintentional duplication mathematically negligible.

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