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UUID Generator

Generate random UUID v4 — single or in bulk.

Formatting
Generated UUIDs10 total

How to use UUID Generator

  1. 1

    Set Quantity

    Choose how many UUIDs you want to generate at once (from 1 to 10,000).

  2. 2

    Choose Format

    Decide whether you want hyphens (-) included, and whether letters should be uppercase.

  3. 3

    Generate

    Click the 'Generate New' button. The tool will instantly create secure, random version 4 UUIDs.

  4. 4

    Export

    Copy the list to your clipboard, or download it as a text file for large batches.

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Frequently Asked Questions

What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit label used for information in computer systems. It's essentially a random string that is statistically guaranteed to be unique.

What version of UUID does this tool generate?

This tool generates UUID Version 4 (v4), which relies entirely on random numbers. It is the most common and secure version for generating IDs.

Are these UUIDs secure?

Yes. They are generated locally in your browser using the cryptographically secure Crypto API (crypto.randomUUID). No data is sent to a server.

What is the difference between a UUID and a GUID?

Nothing practical. GUID (Globally Unique Identifier) is simply Microsoft's implementation of the UUID standard. They are interchangeable.

Can I generate thousands of UUIDs at once?

Yes, our tool supports bulk generation up to 10,000 UUIDs per batch. You can easily download the result as a text file.