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.

d9e4489a-0346-4219-8000-60daab4dfbba
c063535c-f89b-4d29-b6e7-e375cebbd480
65d2105f-b18b-4e18-abf9-366ce6cb0bcd
7d461498-15f5-41c4-826c-dbe940a6729c
88772759-edd9-4dad-93a1-2c18fe31d39f
1e826aaf-c01c-4f50-8d4d-c2304ca9fd86
c3420b30-82dc-422c-a701-fe73e77d1321
a3307946-fc93-4737-b4b9-7b64599acf52
27a3a22e-91e2-4203-b750-70e1e2f2e90c
2aa6e8f0-778b-4882-ad4e-5af2a37e019e
7192a711-17da-4ac3-b66a-75fb56647e87
8582b0c9-624f-4cd7-b0bb-f5c9461791fe

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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