UUID Generator

Generate random UUIDs (version 4) online. A UUID (Universally Unique Identifier) is a 128-bit number used to identify information in computer systems.

How to use

1. Choose the number of UUIDs you wish to generate.
2. Select the format (e.g., uppercase/lowercase, with or without hyphens).
3. Click 'Generate' to create new unique identifiers.

Common Scenarios

• Generating unique keys for database records.
• Creating session IDs or transaction identifiers in software development.
• Mocking data for testing purposes where unique IDs are required.

Data Structure

A UUID is represented as 32 hexadecimal digits, typically displayed in five groups separated by hyphens: xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx.

Principles

This tool generates Version 4 UUIDs, which are based on random numbers. It uses a cryptographically strong random number generator to ensure a negligible probability of duplication.