How to generate UUID/GUID strings?

To help you to obtain some UUID/GUID strings for testing purpose, FYIcenter.com has designed this online tool. All you need to do is to enter the number of data items you need in the form below, and click the "Generate" button. The generated UUID/GUID strings will be presented in the result area.

Result generated by FYIcenter.com - Test UUID/GUID strings: Warning, these UUID/GUID strings are for testing purpose only. Do not use them in any production systems.

54ce428e-2169-4572-9e2d-ab251fa38816
953de057-680e-45fa-8c10-1ed5c55c6221
10041b33-6ee3-4f8c-ba5b-47e7a1a1391b
499bbfc0-f8fd-4916-b0c7-01c0418c8b63
3226c47e-247e-4d9e-b82e-4d34dffa092f
18274e72-cccb-4926-9f05-a2e17033e5f3
aa43abc5-bc01-49ad-af68-528447862a54
47841284-0a1f-4faf-8c74-9b07b6f5fc80
c7df914f-fe49-4a2a-88de-c06dd7487a1c
decf5118-fd5e-4054-8ad9-1df579899a32
84adc2ef-a1ec-46ee-b195-a65c70ba873e
5d48760d-0231-4aa0-bdaf-b3005dc64fbf

What are UUID/GUID strings?

A UUID (Universally Unique IDentifier), also called GUID (Globally Unique IDentifier), string represents a 128-bit number used to uniquely identify information in computer systems.

The UUID/GUID standard is defined in RFC 4122 and ISO/IEC 9834-8. It has 5 versions and several variations:

• Version 5 - Generated by applying the SHA1 algorithm on a given namespace identifier.
• Version 4 - Generated Randomly.
• Version 3 - Generated by applying the MD5 algorithm on a given namespace identifier.
• Version 2 - Generated by a given MAC address and modified current timestamp.
• Version 1 - Generated by a given MAC address and current timestamp.

A UUID string has 32 hexadecimal digits and is usually displayed in 5 groups in an 8-4-4-4-12 digit pattern. The 13th hexadecimal digit is used to identify the UUID version. For example, "c56a4180-65aa-42ec-a945-5fd21dec0538" is a version 4 UUID.

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