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.

54393a01-4c57-4b88-99aa-c2840166435e
329728ec-9b37-4673-b0b8-95d0732665e5
71ff8b61-f3e6-4225-a43e-f092a0e250ce
f2d294b1-cb3e-4951-8b52-33506f464214
96660646-fa83-4bc0-a1f4-8a3c6528f1c2
8fb9aff7-5a92-4fd9-8295-0ceee7d22cf5
9da749e8-bba1-41e8-9e85-408d8aee7371
00590563-67fb-4cd2-b31a-634e6451051a
08c3337e-e1a4-4958-b248-68f3a07be3a5
9545c1c5-f86a-47bb-bc36-a6e03c783722
54eec8b0-ab3f-4304-8cf8-35776ff3a090
2d7b2c3a-bdf9-45ed-b883-41bacf4b9ae3

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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