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.

827cd052-d386-40b5-9a02-f8f68f9cfdde
ac8f8cb9-7d86-424e-a5bb-13edc5f83c63
cec6d4e0-acfa-4619-abf2-6f814b3e411d
a744cce2-b5b9-4284-ad06-f3e35f256548
bc67de48-c17f-4899-9076-ee8b47661b38
a284e1e7-1b7e-4210-a5d9-a43e4acb45f4
055b773e-d862-499e-9420-d3239db5e0c8
ebe2981a-6255-4c81-9148-a3c1598f6141
c1360efc-80e1-492f-90c9-f06b6f87a552
d5a3c0cb-1ee0-41eb-b1c2-9f95ff3fb293
c5cf12cb-f75d-4e8c-9f62-c13b81c5efc6
daf869d5-805f-43fa-8e12-beab01639f0e

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, 3044🔥, 0💬