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.

2f7a621b-b83e-4dfd-8a3a-7c57acbc54c9
71ff8083-87b4-4667-a4bf-04f1664e9a48
8865032a-91eb-4224-b684-9899a6aeb41d
3248ccc7-f3bf-4b7c-b9f7-aa08d5ca6af8
caf7928f-122e-43ae-8097-decacf166aee
d866bb49-514e-4c7d-98e7-9e16d66d4988
0703eadc-d604-46e0-82c6-d28810624fbc
7a389a69-90c6-4c77-972d-b40a6abecbd6
55663688-1a41-4880-a504-48df472b7e76
2fbf5cdf-40d6-4e3d-a1d1-1201254f7bf5
d9a807f2-c10c-468b-9114-de1bee745273
0373f26e-0c6a-4023-9c1d-8737f5cbe19b

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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