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.

2255f6a8-09d7-45f3-a43f-8a4c0bebdd30
ea1bb03f-818b-4afd-8e53-c29490efd814
1810c49e-298c-4a5f-bde4-cb72c4712764
7a95d1dd-b781-420b-b79b-57c558451da5
dac1c9b4-71ee-439d-808c-ef11c717ac87
0d14e5f4-b617-4445-92b9-36ccde5808da
2418d0c0-7974-45cd-96ce-945b1c4e8ad5
cf815026-bdd3-46cb-a5ec-d3862173275b
c15bbd73-f9d2-49b0-b5d9-2540d382e6cd
c3ece742-eab8-4e75-a60c-5bbe69f52ec5
4ffcda11-a9c5-4380-88cc-79fe0ac1ea69
81cde6df-d68c-45d8-afe2-0531e3509d6a

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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