Generators

UUID generator

Create random version 4 UUIDs, individually or in batches of up to 100.

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Your result

A little input. A useful result.

Adjust the example inputs, then select Generate UUIDs.

A LITTLE KNOW-HOW

About this tool

Generate version 4 UUIDs for identifiers in development, sample data or local workflows. UUIDs use cryptographic random values and the standard version and variant bits, with one identifier per output line.

How to use it

  1. 1

    Choose how many UUIDs to create, from 1 to 100.

  2. 2

    Generate a fresh batch.

  3. 3

    Copy the newline-separated identifiers.

Questions, answered

Which UUID version is generated?

This tool generates random UUID version 4. It does not generate time-ordered UUID v7 or name-based UUID v5.

Are the identifiers guaranteed never to repeat?

UUID v4 uses 122 random bits after the reserved version and variant bits. Collisions are extremely unlikely with a sound random source, but uniqueness is probabilistic rather than an absolute guarantee.