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.

d1ba1753-f042-4073-995a-0abb38a77711
dd5358fc-0919-471b-9abc-afedb99e0131
0687b0df-1012-4a35-8beb-5fc5802a9270
c5f326b0-2740-45e8-990d-eaeb446c565a
5cbbc074-35ad-4021-a5b1-0b8a968308b8
e1f5381e-e358-4995-8709-8bccd7990cda
4c6f3576-3a13-40cc-9a01-337b892e618e
08de12fe-5436-4efb-ba0a-75e9ef4a5489
45e4bc7c-7a26-4695-a664-a4d4b95f5b3d
545b4e25-2c67-4a43-ac89-5a0b16821489
1f705df7-6fdf-4380-b67e-d18ec73fdc8d
5674fd9b-0e81-43c6-8b90-0efab3e8f881

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