How to generate a UUID

UUIDs are unique IDs for records and keys. Here's how to generate them and which version fits your use.

Open UUID Generator

v4 vs v7 — which to use

v4 — fully random. Great for general-purpose unique IDs.
v7 — time-ordered (timestamp + randomness). Sorts chronologically, friendlier for database primary keys.

Steps

Open the UUID generator and pick v4 or v7.
Set how many you need for a bulk batch.
Copy a single UUID or the whole list.

Tools used in this guide

UUID GeneratorGenerate UUIDs in bulk Hash GeneratorSHA-1, SHA-256, SHA-384 & SHA-512 Password GeneratorStrong random passwords

Related guides

How to create a strong password Cron expression syntax explained How to generate a SHA-256 hash

How to generate a UUID — FAQ

v4 is fully random; v7 is time-ordered, which sorts nicely and is better for database keys.