🧬 UUID Generator

Generate one or more Version 4 UUIDs directly in your browser.

Generate up to 500 at once.

How to use

Quick steps (10 seconds)
  1. Set a quantity and pick a format.
  2. Click Generate UUIDs.
  3. Copy or download the list.
Examples (formats) 
standard:   3fbc146a-8c9c-4c5e-a27c-2a6a0f34fd72
uppercase:  3FBC146A-8C9C-4C5E-A27C-2A6A0F34FD72
no-hyphen:  3fbc146a8c9c4c5ea27c2a6a0f34fd72
braces:     {3fbc146a-8c9c-4c5e-a27c-2a6a0f34fd72}
urn:        urn:uuid:3fbc146a-8c9c-4c5e-a27c-2a6a0f34fd72
FAQ

Security: Uses crypto.getRandomValues (when available). If unavailable, the tool warns you before generating.

Privacy: 100% local — nothing leaves your browser.

Version: v4 (random) with correct variant/version bits set.

Last updated: . Maintained by Rogue Narwhal Ventures LLC.

About this UUID generator

This free generator creates UUID v4 identifiers from cryptographically strong random bytes. All logic runs locally in your browser; nothing is uploaded, saved, or tracked. It’s part of the SeaBeasties Tools suite, designed to be fast, privacy-friendly, and supported by a single lightweight ad per page.

Explore more utilities at SeaBeasties home.

Privacy Policy
Have feedback or ideas? info@roguenarwhal.com