Test UUID/GUID Generator

Q

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.


Version:

MAC Address: Used in Version 1.

Namespace: Used in Version 3 and 5.

Count:

✍: FYIcenter.com

A

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.

b77e6960-05fa-4e37-9af5-0b00861e2312
6f39e6c1-62d9-4962-b85f-4ba2df4eac38
61217deb-3d69-42fd-9afc-da0f9b34e062
50f7c4be-98a4-4108-92b9-b6c85c9c0b74
f4985ec0-4d77-46fc-8734-2b56729375c3
f040c2a1-eacb-4fee-ba06-a2e644b016a9
2e09ed82-cfc3-4502-bd99-5be6002630d0
c6edae57-db69-4989-946c-a1a799b90fd8
344d3997-e989-4daf-b8de-d8ef08695efe
503813ce-edf3-4403-9fdb-1ae0527d5610
14018b54-c523-4667-ab74-1694c3bc8f7a
f7c642c9-6625-451a-af47-05d8b142fb75

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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2018-10-19, 1200👍, 0💬