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.

54940b1f-2d70-45be-b0c9-fc34c9eb4aff
59c14ef7-a620-49b8-9ccf-0231105bb5ef
21223277-1187-4ece-8e01-f1c6e120e785
8ef60e9a-f6a6-4ca3-856f-8389ae137f47
111378d7-b7b4-4bfa-92b4-53b2e1e8b461
0078f48a-2ce7-4ec1-b12e-179802466fe2
3261062a-4aaf-44a8-b1d3-cd6d4f6dd566
bb253fb8-e285-4946-b95d-8d8004c625dc
37be5e1b-3cd1-4429-a811-61ff675c9af5
04c87e37-86f0-452c-ab7d-0d695b68e62d
d1c70698-acf9-4955-8a42-b5d8c9b9d71a
a3aae518-f37d-4acb-83d3-5deb06383c40

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