Is UUID Generator completely free?

Yes, completely free with no hidden costs, limits, or registration required. Generate unlimited UUIDs instantly.

Can I generate multiple UUIDs at once?

Yes, you can generate up to 100 UUIDs in a single batch. Enter your desired quantity and click Generate.

UUID v4 is a randomly generated 128-bit identifier with the format xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx. It's used for creating unique IDs without a central authority.

A NIL UUID is the all-zeros UUID (00000000-0000-0000-0000-000000000000). It's used as a placeholder or null value in applications.

Does UUID Generator work offline?

Yes, UUID generation happens entirely in your browser. You can use it offline without any internet connection after the page loads.

Can I use generated UUIDs for production?

Yes, all UUIDs generated meet RFC 4122 standards. They're cryptographically random and suitable for production databases, APIs, and applications.

What UUID formats are supported?

Standard format (8-4-4-4-12 with hyphens), uppercase, and no hyphens format are all supported. Choose your preferred format before generating.

Is my data private and secure?

Yes, 100% private. All UUID generation happens locally in your browser. No data is sent to servers or stored anywhere.

Can I use UUID Generator on mobile devices?

Yes, works perfectly on iPhone, Android, tablets, and all modern browsers. The interface is fully responsive.

What are UUIDs used for?

UUIDs are used as unique identifiers in databases, APIs, microservices, distributed systems, and applications requiring globally unique IDs without coordination.

UUID Generator — v4

Generate random UUIDs (v4) and NIL UUIDs. Generate up to 100 UUIDs at once.

Number of UUIDs

UUID v4

a78a5700-f055-4887-96a5-3752a7e24ee8

How to use UUID Generator

Enter the quantity of UUIDs needed

Click the 'Number of UUIDs' input field and enter a value between 1 and 100. The default is set to 1. You'll see the number update in real-time as you type.

Select your UUID version and format

Choose UUID v4 (random) or NIL UUID from the dropdown menu. Select your preferred format: standard (with hyphens), uppercase, or no hyphens. The preview updates automatically.

Click the Generate button

Press the blue 'Generate UUIDs' button. Your UUIDs will instantly appear in the output box below within milliseconds.

Copy your generated UUIDs

Click the 'Copy to Clipboard' button next to the results. A confirmation message will appear. Paste your UUIDs anywhere using Ctrl+V or Cmd+V.

Frequently Asked Questions

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