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.

ebbb0bd4-772f-4756-a401-7c9ba9cc69cf
e4cd7ec0-900e-4cf4-ae34-cd24174fb08e
a2cb07c5-e6c7-4e9e-a136-63d0a77458c1
3f4b92bc-e8c9-4b62-967c-e4737fc57260
2a3f2617-19f9-438b-9198-4f3848b5a8d3
3f8db04e-13fc-41fc-ba31-a087ba94067b
c0454642-1dcf-41fd-97e9-6d087f58fbbc
459fce83-a8e6-44e3-bb80-1c66835678df
3eb254c1-e16b-403b-89cb-2a99e011250c
6feae85c-4a6d-4600-8ac3-63f56ad81237
fb32e57e-8cac-4ca6-bbaf-7a99272b8e74
30302349-f1f0-491e-bfbd-13af36f205bd

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, 522👍, 0💬