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.

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Version: 1345

MAC Address: Used in Version 1.

Namespace: Used in Version 3 and 5.

Count:

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.

911519f8-4b19-4ad4-a0bf-a63cb2286656
de300673-a512-494f-b22c-89395f0d4290
365b175a-9697-4e47-9540-70af099fe375
2ce7dae6-d108-4580-8fda-80f444b69f96
cd7c4e59-3ed9-4f7f-a47c-48e9253d72fe
57a4c4bb-1fca-4fcb-bef8-85920dd23015
d4fd5891-028d-4def-8629-80bca13a12d1
297e5a2c-e362-48da-8338-91c2ee4da02a
84cee525-ef3f-4c74-858f-6d8869e88ed0
2b1fd42e-57df-4f90-8114-0f28e6c1cb43
bd94d722-2e58-4b41-91fd-90c2c5e4dc9f
9a16d31d-e370-4a36-9184-ce7df699f67d

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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