UUID/GUID Generator

Generate cryptographically secure random UUID v4 identifiers instantly. No server calls, 100% private.

100% Secure. Generated locally.

Generated Results

Secure Generation: These V4 UUIDs are generated locally using the cryptographically strong crypto.getRandomValues() API.

How to Generate UUIDs

1

Choose Quantity

Specify how many unique UUIDs you need, from 1 up to 1,000 in a single batch.

2

Set Options

Customize the format: toggle uppercase, remove hyphens, or wrap them in curly braces.

3

Instant Export

Copy your generated IDs to clipboard or download them as a clean text file for your project.

Professional UUID Features

RFC 4122 Compliant

All UUIDs are generated following the Version 4 standard, ensuring 122 bits of randomness and standard compliance.

High Entropy

We use the browser's crypto.randomUUID() or getRandomValues() for cryptographically strong uniqueness.

UUID Generator FAQ

What is a UUID v4?
A Universally Unique Identifier (UUID) version 4 is a 128-bit number used to identify information in computer systems. Version 4 is specifically generated from random numbers.
What are the odds of a collision?
The probability of a collision (two people generating the same UUID) is so low it's practically zero. You would need to generate billions of UUIDs per second for many years to have a 50% chance of a single collision.