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.

865d13a2-daec-4e0a-a1af-7f3386d601e4
788ac40f-337d-4367-92c9-8456f9c9cf21
a3161127-b88e-494c-b92c-efdedea90fca
be22cd13-c1b9-4e7c-91d7-e5e7bba68895
7a625ebd-91f8-491e-a53e-044b3178370c
49dbb3eb-1af2-4240-9f7b-fac96df3659b
fbae27ad-3748-4a2c-a5b4-b52a5a59c86b
ab2902c1-e9ab-4ea0-b6e2-e5a7e6aac9b2
85554d5a-205f-43b9-bc0c-62112da784b4
4a4c4e6d-3524-499f-980f-8d49ecb1180f
da169ddb-7ec5-4913-9954-62d39be9d6c2
e7003cbc-5a8e-436d-b97d-db173bb5fc4c

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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