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.

0ecd9995-c300-45df-91f4-8929d0d307fc
cd7cd8e9-fe56-48de-bdff-76dc3e5beae9
f1abce04-55ec-4382-aa82-f96df52189cd
9070a007-74dd-4aac-8f73-ee3d2f13dd65
f3d7d98e-54f9-4eb5-b0aa-2d64aeedfbe6
9569a831-4c06-48a3-9e39-97fe6c82157d
2516616b-056b-4148-9ed4-d1e17262c9be
6a8df746-6ffa-41b0-8017-c8f520d1f90d
bc768404-4123-4713-b81f-7d8c4e47d8ba
41815554-a32a-4409-87e2-e5dd272ddb1b
634e3bfc-ee2c-48a4-a065-c286d2fac4f9
dfeaf365-ac5f-4e09-8997-566d0d38b84c

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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