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.

462adc1e-0b14-41ce-8373-8d6f58fe1d19
7635c0be-11cc-4a3e-b6e1-1b8e90e6b5a7
cdfa3de9-00e3-483b-b563-0a5a099a1385
d508315d-2c2e-47f4-89e3-3f83100cbc6d
233cf279-69f2-4ebb-82d7-d2b1b71157b6
73499887-e09b-4b1f-be82-f1bf748cb55a
4f96984d-4ce5-4225-b64a-24176471f7a5
dc43ee7c-e6fe-4f5f-9017-99d2876c9027
986908ef-f645-4dfa-b0fc-c6f1b7cd73e8
ea39a4c4-4778-45ca-b18b-ea29805daee9
26846852-dc27-4bbf-9611-86cc944ac637
b3b19cfd-f2ae-4c91-b3c1-f2326d756115

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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