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.

ebdcf08d-3433-4962-9c41-224128e30565
20364103-1e5b-4dc1-8eaa-49477887e9fb
f09a5649-c251-4dfb-9d20-d0e6c1aa3a24
53ca202a-81f1-41bd-9121-ed1081c21f3c
9a8c29d3-114e-4ad5-9721-06af8d9eff0f
7cfdd0a7-c19f-422e-8807-0656975d595b
6cc69235-a000-491d-b9f9-072cc73c9543
a7326a34-56e5-47f0-a520-cb508878f338
9755bff6-695f-4b0b-9b24-9172cc3dd993
14f42fd3-dcae-4e08-8611-ccf889084a4b
7e621f44-2727-478e-8162-a049b3d1ac0a
7c801e09-afb8-4302-939c-1bf3f8fffff7

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, 653👍, 0💬