Question 1

How do I generate a random UUID v4?

Accepted Answer

Select the 'UUID v4' tab, set how many you need (1–100), and click Generate. Each UUID uses crypto.randomUUID() for cryptographically strong randomness. v4 UUIDs are fully random — ideal for general-purpose unique IDs.

Question 2

What is UUID v7 and when should I use it?

Accepted Answer

UUID v7 includes a Unix timestamp in milliseconds as the first 48 bits, making them naturally sortable by creation time. Use v7 for database primary keys — they work better with B-tree indexes than random v4 UUIDs. Switch to the UUID v7 tab to generate them.

Question 3

How do I copy or export generated UUIDs?

Accepted Answer

Hover over any UUID in the list and click the copy icon to copy that single UUID. The tool generates up to 100 UUIDs at a time, and you can generate new batches as many times as you want.

UUID Generator

Online UUID Generator