UUID Generator
FreeCreate cryptographically random version 4 UUIDs for database keys, test data and identifiers.
How to use UUID Generator
- 1Choose how many UUIDs you need.
- 2Select Generate.
- 3Copy one, or copy them all.
Private by design. This tool runs in your browser. Nothing you enter or add is uploaded.
Frequently asked questions
Can two generated UUIDs collide?
In theory yes, in practice no. A version 4 UUID has 122 random bits, so a collision is vanishingly unlikely.
How are they generated?
With your browser's built-in cryptographic random generator, the same source used for security-sensitive keys.
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