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Online UUID GUID Generator

Generate random UUID version 4 identifiers in your browser. Nothing is sent to the server.

Runs in your browser Free, no sign-up

About UUID v4

A version 4 UUID is a 128-bit random identifier, written as 32 hexadecimal digits in five groups. GUID is the name Microsoft uses for the same thing. Values are generated with your browser's cryptographic random number generator.