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UUID Generator

Generate random UUID v4 values locally for apps, databases, tests, and prototypes.

Developer Direct route, no hidden menu

UUID options

Result

First UUID

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How It Works

The tool uses crypto.randomUUID when supported, with a standards-style random v4 fallback for older browsers.

Example

A UUID looks like 9f1c2a77-28d4-4e0c-b4ea-6c8f3a879f8d.

Frequently Asked Questions

What UUID version does this generate?

This tool generates random UUID v4 values.

Are UUIDs generated locally?

Yes. UUIDs are generated in your browser using crypto.randomUUID when available.