GUID Generator Online

Generate random GUIDs (Globally Unique Identifiers) online — one or many, in your browser.

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How it works

A GUID is the Microsoft term for a UUID — this generates 128 random bits formatted per RFC 4122 version 4.

Examples

InputResult
1 GUIDsingle identifier
10 GUIDsbatch for testing
50 GUIDsbulk generation

Frequently Asked Questions

Is a GUID the same as a UUID?

Practically yes — GUID is the Microsoft implementation name of the UUID standard (RFC 4122). Both are 128-bit identifiers.

Are the GUIDs unique?

For all practical purposes yes: about 122 bits of randomness make collisions astronomically unlikely.

What format is the output?

The standard 8-4-4-4-12 hexadecimal format, e.g. 3f2504e0-4f89-11d3-9a0c-0305e82c3301.

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