100% private · runs in your browser
UUID Generator
Create random UUIDs for databases, APIs and testing, in bulk if you need.
✓ Free forever✓ No sign-up✓ No watermark✓ Files never leave your device
How to use the UUID Generator
- Choose how many UUIDs you need.
- Set uppercase or hyphen options.
- Click Copy to take the list.
These are version 4 UUIDs made with your browser's secure random generator. Choose how many you need, switch to uppercase, or remove hyphens, then copy the whole list.
Why use Toolbox
Private by designProcessing happens on your device. Nothing is uploaded to a server.
FastNo waiting for uploads or queues. Results appear instantly.
Works everywhereUse it on phone, tablet or desktop in any modern browser.
Truly freeNo account, no watermark and no hidden paywall.
Frequently asked questions
What is a UUID?
A UUID is a 128-bit identifier written as 32 hexadecimal digits, such as 123e4567-e89b-12d3-a456-426614174000. It is also called a GUID.
Can two UUIDs ever be the same?
A random v4 UUID has 122 random bits, so the chance of a duplicate is extremely small in practice.
Is this tool really free?
Yes, always free with no sign-up, no watermark and no file limits set by us.
Are my files uploaded anywhere?
No. Everything happens inside your browser, so your files and text never leave your device.