Free online tool

UUID generator

Make random version 4 UUIDs (also called GUIDs) for databases, code and testing. One or up to 500 at once.

Works in your browserNothing is sent anywhereNo sign-upFree

How many

Format

UPPERCASE No hyphens {Braces}

Questions

Good to know

Are these UUIDs unique?

Version 4 UUIDs are 122 random bits. The chance of two being the same is so tiny that they are treated as unique.

UUID or GUID?

The same thing. GUID is the name Microsoft uses.

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