UUID Generator

Generate random UUIDs and GUIDs online with this free tool. Create v1, v4, v5, v7 UUIDs, or customize your own. No data sent to servers - 100% private.

Generated UUIDs

Information

Universally Unique Identifiers (UUIDs) and Globally Unique Identifiers (GUIDs) are standardized methods for generating practically unique IDs without centralized coordination. Our free online UUID generator creates random or custom UUIDs/GUIDs instantly in your browser - all processing happens locally, ensuring complete privacy. Use it to generate UUIDs for databases, software development, testing, or anywhere you need guaranteed unique identifiers. This tool supports multiple UUID versions (v1, v4, v5, v7) and allows you to customize formats, casing, and more. Perfect for developers working with APIs, databases, or distributed systems that require universally unique identifiers.

How to Use

  1. Select your desired UUID version
  2. For v3 and v5, enter a namespace and name
  3. Click generate to create your UUID(s), optionally generating multiple

Note: UUID v4 provides the highest randomness and security, suitable for most applications.

Frequently Asked Questions