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.

f444f2ea-68cd-4915-8af3-60ed72d63479
39704a62-0ab7-42f4-8d8d-a550a29b21db
cdaca927-b21a-4a75-82b5-1636df4dc901
8db634d9-153f-46b8-8f24-e16289fad19a
a834f83f-a31c-47ac-9bf6-69ea7a3bcad0
2b274d4b-6120-4147-80d9-5d9653d5567d
ce9568ef-d931-4a0d-94c6-9c71282e161b
213e0967-702e-42d1-8240-813ab2331f45
fa2f39dd-64f4-4329-a990-a78bfaa44973
f650829b-0c0d-476f-9364-4f3e6a695d1e
54294a61-992a-4bd4-b475-23d69173b476
d812af2c-12d4-4f69-88ff-176b5de1c123

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, 717👍, 0💬