UUID Generator

Generate UUID v4 random identifiers online for free. Create single or bulk UUIDs instantly in your browser using the native crypto API. No data sent to servers.

Your data never leaves your browser

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Generate compact URL-safe unique NanoIDs

Frequently Asked Questions

What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit label used to uniquely identify information. UUID v4 is randomly generated and has an astronomically low probability of collision.

What is the difference between UUID and GUID?

GUID (Globally Unique Identifier) is Microsoft's implementation of UUID. They are the same concept and format, just different names from different ecosystems.