UUID Generator
Generate cryptographically random UUIDs (version 4) one at a time or in bulk. Uses your browser’s secure random number generator.
Generated
5
Version
4 (random)
UUIDs
1871c698-1f9c-4527-8707-95b15ee257f7 be35fd0a-17cc-4433-ac00-86ff5b8e5fdd b1bf89b1-def0-4a76-9c39-413c82f259df 3266f1ef-33b5-4b53-8020-431975259a78 37aa287e-9fe0-42f2-9ed1-4e0a644511ae
UUIDs are generated with your browser’s cryptographic random generator (crypto.getRandomValues).
Formula
Version 4 UUID: 128 random bits with the version and variant bits set
Example
Input
5 UUIDs
Result
e.g. 3f2504e0-4f89-41d3-9a0c-0305e82c3301
Frequently asked questions
Version 4 UUIDs are random 128-bit values. The chance of a collision is astronomically small.
Yes — up to 1,000 at a time.
No. They are created locally in your browser.
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