Tools/Code & Developer/UUID Generator

UUID Generator

Generate unique UUID values.

100% on device · 0 uploads

How Many:

01 · Unlimited

Use it as many times as you want — completely free.

02 · Private

Your files never leave your device; everything runs in your browser.

03 · Fast

Processing happens locally and finishes in seconds.

How to Generate UUIDs

Choose how many you need

One UUID or a whole batch for seeding databases.

Generate instantly

Cryptographically random v4 UUIDs are created in your browser.

Copy individually or all at once

Grab a single ID or the whole list with one click.

Why Use This UUID Generator?

✓Standard v4 UUIDs, cryptographically random

✓Batch generation for database seeding

✓One-click copy for single or all

✓100% local and instant

Frequently Asked Questions

What is a UUID v4?+

A 128-bit identifier generated from random data, formatted as 36 characters. The randomness makes collisions practically impossible — you can generate IDs anywhere without coordination.

Can two UUIDs ever collide?+

Theoretically yes, practically no: you'd need to generate billions per second for decades to expect a single collision. That guarantee is the entire point of UUIDs.

Where are UUIDs used?+

Database primary keys, API request IDs, distributed systems, file names, session tokens and anywhere unique identifiers must be created independently.

Are these securely random?+

They're generated with the browser's cryptographic random source — suitable for identifiers. For secrets like API keys, use a dedicated secret generator.