UUID Generator
Generate random UUID v4 identifiers instantly, right in your browser.
🔒 Processed locally in your browser
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How to use
- A new UUID v4 is generated automatically when the page loads.
- Click Generate another for a new single UUID, or Copy to copy it.
- Switch on Bulk mode to generate multiple UUIDs at once (up to 50).
- Use Copy all to copy every UUID in the list, one per line.
Features
- Generates standards-compliant random UUID v4 values
- Uses the browser's built-in crypto.randomUUID()
- Bulk mode for generating up to 50 UUIDs at once
- One-click copy for a single UUID or the whole list
- 100% client-side — nothing is sent to a server
Frequently asked questions
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit identifier that's practically guaranteed to be unique, commonly used as a key for database records, sessions and objects.
Which UUID version does this generate?
Version 4, which is generated using random numbers. It's generated with your browser's crypto.randomUUID(), a cryptographically secure random number generator.
Are my UUIDs sent to a server?
No. UUIDs are generated entirely in your browser and never leave your device.
How many UUIDs can I generate at once in bulk mode?
Up to 50 at a time. You can generate another batch as many times as you like.