Generators
UUID Generator
Generate one or many random version-4 UUIDs instantly.
Generators
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Generate random UUIDs
This tool generates random version 4 UUIDs, also called GUIDs, the 128-bit identifiers used as unique keys in databases, APIs and distributed systems. Make one or up to 500 at a time. They come from your browser's secure random source, so they are fit for real use, not just placeholders.
How to generate a UUID
Choose how many you need, click Generate, and copy them all with one button.
Frequently asked questions
Are these UUIDs cryptographically random?
Yes. They use the browser's secure random generator, not a weak pseudo-random function.
What version are they?
Version 4, which means the values are random rather than based on a timestamp or hardware address.