Generate secure random UUIDs (GUIDs), one or hundreds at a time.
🔒 Generated on your device with the browser's secure random generator.
How to use the uuid generator
- Choose how many you need.
- Pick the format.
- Copy or download the list.
What is a UUID?
A 128-bit identifier written as 36 characters, such as 3f2b8c1e-9a4d-4e7b-8c2f-1d5a6b7c8d9e. Version 4 UUIDs are random; the chance of two ever matching is practically zero.
Frequently asked questions
Is a GUID the same as a UUID?
Yes – GUID is Microsoft's name for the same thing.
Are these safe to use as database keys?
Yes. They are generated with crypto.randomUUID.
Can UUIDs collide?
In theory, but you would need billions per second for decades to expect one.