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.

fe6685dd-ce45-42a1-9c15-aee943cf6f99
00571cde-d1ee-4cd6-8b0b-a067035887f4
1793995f-dad8-4923-b118-90d1ab1e34ab
5ac1eb49-761e-47ff-b9d6-664f603b5d45
437cfc7f-e6ea-4981-aa4c-f37d5d917ee1
66908a17-836a-4e78-b4c8-5e31529fd5f2
da122280-c45a-452e-b59e-b5bbbd9503b4
9f5e9539-b4aa-4bcd-b88f-5718e0cb7709
804f2d75-e2f2-4c01-a936-38cf0251f982
2e7b42cd-a28a-4549-8695-246e260fd773
7a75930f-3105-461a-a3f9-d55a814adcd3
db26e7c4-0293-420f-837d-da28539338e6

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.

⇒ Test US/Canada Phone Number Generator

⇐ Test ISBN Number Generator

⇑ Test Data Generators

⇑⇑ Online Tools