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.

2ea0cfeb-5072-4c96-b556-fbf21ee8f1dd
4cbd9cee-051c-4ff8-a04b-2359bc460c05
80834e5b-3834-4a46-9104-2575b2a810ba
a218f266-f518-462f-8523-a803b61af17a
d2e17b68-c542-4f79-8499-c84adc2681c4
8e54a042-6b5c-419f-8db7-53c7fa1cea8c
b3ac7421-31e6-4097-8401-8d15331f97bf
e24399e1-7ea9-410d-87ab-3d9821743e16
fea79e9c-a365-4901-a44b-0f1c51dd6581
268b06a1-47ba-4bb8-860c-ee4862e30436
1346ad48-9d85-4dba-bb40-b58361755edf
3bd025b6-efae-4ad3-88b2-3d7e51db7b80

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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