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.

63ce272a-3779-411e-ad28-ce2259b45dfa
0bebd66f-0374-43e6-bdbb-3bb9e70fae2b
a5811676-b4fb-4eae-854c-c528a5fc78f2
4152674c-afc2-4f0e-9a33-f96bf0a6ac6d
e64eacda-2940-4860-8216-cf4dfffc4aa1
89449585-ab76-4e0a-9b5b-e7dcfd8a566c
a3d7ed5f-58f7-477d-9bb7-db5aaef615f5
b3b5ca0a-9b0e-4e74-baec-8211d7db69b8
951c9e91-81d5-4fa6-9491-aa367bb9dee0
e05552df-84bd-4c21-9205-26ebda0b28f1
5de1904c-dadc-4f87-ae44-6e819b4fc2da
b11943eb-b639-4abf-b1b3-dd6d38f43f10

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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