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.

6068ca74-84ee-4ac8-80c3-3c139b9d73c4
aca31d0a-39ad-4a08-a388-3d26cf242f4b
9e1db2a4-8996-414d-8adc-01d7ab519aaf
c98ba158-4396-4c76-8671-3236b6a93271
4d00bf06-1c99-4f7b-9604-e015ae42ffa8
7ffe5671-09b7-44f3-8699-3dc79929c7dd
70c2cad6-5430-4519-b9aa-2b7aefd73e85
631864ba-1f48-4eb9-8d49-d18686282b41
b5fccf83-3f58-4ece-95cd-4725b5326ff9
1e72b29b-a936-4e42-870c-27b42b1034e0
cea94ee5-c6ae-4d7b-a7da-3f48121da988
ec4caa2d-18f6-4c1e-9e80-5f2a4ddabc3f

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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