Question 1

What is a UUID?

Accepted Answer

A UUID (Universally Unique Identifier) is a 128-bit identifier used to uniquely identify information in computer systems. UUID v4 generates random identifiers, while UUID v1 is time-based.

Question 2

Is this UUID generator free?

Accepted Answer

Yes, this UUID generator is completely free with no limits. Generate as many UUIDs as you need, all processed in your browser.

Question 3

What is the difference between UUID v1 and v4?

Accepted Answer

UUID v1 is generated using a timestamp and MAC address, making it time-ordered. UUID v4 is randomly generated, providing better unpredictability for security purposes.

Question 4

Can I generate multiple UUIDs at once?

Accepted Answer

Yes. Use the count field to generate up to 1000 UUIDs at once. You can also choose uppercase output and remove hyphens.