UUID Generator 🆔

What is a UUID?

UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. They are designed to be generated independently without a central authority and with a negligible probability of duplication.

UUID v4 Structure

The version 4 UUID used here is purely random. It's represented as a string of 32 hexadecimal digits, divided into five groups separated by hyphens (8-4-4-4-12), like: f47ac10b-58cc-4372-a567-0e02b2c3d479.

Frequently Asked Questions

Extremely low. To have a 50% chance of a single collision, you'd need to generate 100 trillion UUIDs per second for 100 years. It's safe for globally unique IDs.
Use UUIDs in distributed systems where multiple databases create IDs independently, or if you want to hide the total count of records from users (e.g., in a URL).

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