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UUID Generator

Generate one or many random version-4 UUIDs.

  1. Set how many you need
  2. Generate
  3. Copy the list
85d3c9e7-18e8-429a-b36b-ddc1c45f9d23 57aae91e-e250-40c8-b962-602cad0905b2 d23a348a-a036-492d-9cad-e98c8423b3cb 44ab4169-7291-466e-8984-397684684063 5857ee44-7410-4b6e-a325-dc0f977d7498

Frequently asked questions

What is a v4 UUID?
A 128-bit identifier that's randomly generated (version 4), formatted as 32 hex digits split into five groups with hyphens. The odds of two v4 UUIDs colliding are astronomically small, which is why they're used as unique IDs in databases and APIs.
How random are the generated UUIDs?
They use your browser's cryptographically secure random number generator (crypto.getRandomValues), the same source used for security-sensitive randomness, not a weaker Math.random()-based approach.
Can I generate many UUIDs at once?
Yes — set how many you need and generate them all together, then copy the full list in one go.
Are the UUIDs I generate stored anywhere?
No. Generation happens entirely in your browser — nothing is sent to a server or logged, and no account is needed.
Do I need to install anything or sign up?
No. It runs entirely in your browser — no software install, no account, no email required.
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