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.

97c50397-65a5-4e64-a0db-1e6b7ddd3064
71b514d3-9450-46f1-b485-cd0a5fdf2612
bbe5a8fd-492b-44b5-b610-2a49772b264d
e2e32ce7-02c5-453d-85c6-a3f1cbd53e80
ef17b87c-8997-49d6-a065-914bd13afc62
dae0e751-9be6-455b-abe4-485cda3ec771
ca5d0ccc-772e-4bf3-9326-e8c45e19a664
6113f911-6a6b-4cea-988c-d3ddc115c108
b41d4a75-65de-4b1e-a54d-609328722c18
c6c3bfe9-23f6-4b6d-ad32-5ea12f68e49c
975473ee-a98d-4fae-bdf4-c719c1566261
f7dbd581-22aa-4766-beef-d666c502f574

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, 589👍, 0💬