UUID/GUID Generator

Generate random, cryptographically secure v4 UUIDs for your applications.

Whenever possible, your data never leaves your device. Your security is our priority.

Generated UUIDs

Showing 0 UUIDs

Settings

Quantity (Max 500)

Include HyphensUppercase

About this Tool

The UseMil UUID/GUID Generator allows you to instantly generate version 4 Universally Unique Identifiers. A UUID is a 128-bit label used for information in computer systems. Version 4 UUIDs are generated using cryptographic pseudo-random number generators, ensuring that the probability of a collision (generating the same ID twice) is virtually zero.

Whether you need a single primary key for a database or hundreds of unique IDs for mock data, this tool can generate up to 500 UUIDs instantly.

How to Use

Set Quantity

Enter the number of UUIDs you need (between 1 and 500). Press enter or click outside the box to apply.

Choose Formatting

Toggle the settings to remove hyphens or switch the characters to uppercase depending on your database requirements.

Generate and Copy

Click the refresh icon to generate a new batch, and use the copy button to instantly copy all generated UUIDs to your clipboard.

Frequently Asked Questions

They are essentially the same thing. UUID (Universally Unique Identifier) is the standard term used across the internet, while GUID (Globally Unique Identifier) is the specific term originally popularized by Microsoft.

Yes, this tool generates Version 4 UUIDs which are created using strong cryptographic randomness, making them completely unpredictable and safe for production databases.

Absolutely. The generation logic is bundled into the JavaScript running on your browser, so you can generate thousands of IDs without an active internet connection.