Verified no-login tool
Choose, generate, copy.
Pick how many UUIDs you need — from 1 to 50.
Optionally switch to uppercase or strip the hyphens.
Hit Generate UUIDs — the list fills instantly.
Select and copy the UUIDs into your project.
Built for speed, privacy and reliability — on any device.
Create 1 to 50 UUIDs at once, ready to paste into code or configs.
Version-4 UUIDs from your browser's crypto engine — not predictable counters.
Uppercase or lowercase, with or without hyphens — one click each.
Generation runs locally — nothing is logged or sent.
No account, no limits.
A universally unique identifier — a 128-bit value like 3f8a2b1c-9d4e-4f67-8a2b-1c9d4e4f678a, used to label records in databases and code.
V4 UUIDs are generated from random data. Their randomness comes from your browser's cryptographic engine.
Astronomically unlikely — a V4 UUID has about 122 random bits, far more than enough to avoid collisions in practice.
No. Generation happens entirely in your browser.
The tool works in all modern browsers including Google Chrome, Mozilla Firefox, Microsoft Edge, Safari and Opera. We recommend keeping your browser up to date for the best experience.
Bulk UUID v4 generation with format options