GUID Generator

Generate GUIDs (the Microsoft name for UUIDs) in bulk.

Free · Runs in your browser · Your text is never uploaded

A unique identifier code made of random characters

GUIDs and UUIDs

A GUID (globally unique identifier) is Microsoft’s name for a UUID. The values generated here are version 4 GUIDs: 122 random bits, so the chance of two matching is negligible. .NET and SQL Server usually display GUIDs in uppercase with hyphens, for example 3F2504E0-4F89-41D3-9A0C-0305E82C3301.

Untick “Include hyphens” for the compact 32-character form, or untick uppercase for lowercase output.

Need more options? Open the full UUID Generator.

Frequently asked questions

What is a GUID?

A 128-bit unique identifier, the same format as a UUID, mainly named this way in Microsoft software.

Are GUIDs case sensitive?

No. Uppercase and lowercase represent the same value.

How do I generate many GUIDs?

Set “How many” up to 500 and copy the whole list.

Related tools