UUID Generator
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What is a UUID (v4)?
A UUID (Universally Unique Identifier) is a 128-bit label used for information in computer systems. Standard Version 4 UUIDs are compliant with RFC 4122 guidelines and are generated entirely from cryptographically secure random values.
Because v4 UUIDs contain 122 bits of raw entropy, the probability of generating a duplicate value is infinitesimally small. Even if you generate billions of IDs every second for the next century, the chance of a collision is practically zero.
Secure client-side generation
Many online UUID generators run server-side, logging the unique keys they issue to users. This generator relies entirely on your browser's native crypto.getRandomValues API, keeping your generated identifiers completely private.