# UUID Generator

Generate v4 UUIDs, single or in bulk.

## URL

https://ilham.dev/tools/uuid-generator/

## What It Does

Generate version 4 UUIDs, one at a time or in bulk, using the browser's cryptographic random number generator. They are suitable for database keys, request IDs and anything else that has to be unique without coordinating with a central authority.

## Features

- Runs in the browser
- No login required

## Input

text input.

## Output

text output.

## Privacy

Processing happens locally in the browser.

No input data is uploaded to ilham.dev.

- Requires login: false
- Requires API key: false
- Stores user data: false


## Examples

- Can two generated UUIDs collide?
- Are these UUIDs predictable?




## Questions

### Can two generated UUIDs collide?

A v4 UUID carries 122 random bits. You would need to generate around 2.7×10^18 of them before a collision became likely, which is far beyond any realistic workload.

### Are these UUIDs predictable?

No. They come from crypto.getRandomValues rather than Math.random, so earlier values tell you nothing about later ones.