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.

74c1f10e-4858-49f5-b519-5022ec54610b
dc09a644-7ddd-4cc2-a505-35fcc10b6be4
56179a3e-bd16-403b-9a9a-eea290c40d22
772017d9-1451-4901-bb23-ba684814f6d8
09a46dd6-1a95-45c9-9e99-dff1cb0d0daa
27a9b169-10bd-4c12-8023-fa8a19a56e91
c7263408-0c95-445d-ae9e-2a510060b0f9
e20d3f2c-9a28-4012-bb47-c680154d6eed
95922022-34c8-4f6b-aad0-1bbfce49e89b
33314a90-7139-495e-aa31-d83a54b908b1
f2f90378-b994-43b4-8148-70b422f80084
fc4d48f8-afd7-4cac-bae1-38ec3e8d367a

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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