Open toolkit

Dev Utilities

UUID Generator

Generate cryptographically random version-4 UUIDs, the standard unique identifier format used in databases, APIs, and distributed systems. Generate a single UUID or a batch at once, using your browser’s built-in secure random number generator.

  • Files never leave your device
  • Runs entirely in your browser
  • Free, no account needed
Use UUID Generator - free

Frequently asked questions

Are these UUIDs guaranteed to be unique?

Version-4 UUIDs use 122 random bits, making collisions astronomically unlikely in practice, the same standard used by most databases and APIs.

Can I generate more than one at a time?

Yes, choose how many UUIDs to generate in a single batch.

What generates the randomness?

Your browser’s built-in cryptographically secure random number generator (crypto.randomUUID).

Generate a UUID - free and instant.

Open UUID Generator
  • Files never leave your device
  • No upload required
  • No account needed
  • Unlimited use, always free

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