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.

cfd7c822-ccca-45bf-a31f-0446f7d0939f
0d33711f-ac7f-450e-868a-f9399baad2b1
a7b3b28e-aec2-469b-9bca-9c37d5feadde
fecf1924-ad80-4361-b952-677454f5aa18
e55eef51-f9b8-4670-bc26-34f101175e28
615b7ca2-4b83-4dea-bf49-a70b8f1abdf4
e1f31251-7197-477c-a30d-16b99076a6d6
62175e9e-fe64-4604-9b43-f0c4e6a67087
a72d56d1-c949-41e9-97e1-01093e168e87
ed26ce38-3f26-4ccb-9785-9c77ca136be1
bc3e5df8-4b2f-43df-9ad7-c96a0e43074c
7eafd3c3-b023-4d64-8385-ba25b6b72593

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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