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.

aa226303-1da2-48bf-bca5-5d6dddab8722
a621f04f-2487-4719-9856-19b1a5add5bd
733dad3b-bc4a-46d8-84c5-4f4878881e87
d02f58f4-1ed4-46a6-a7e5-8576a7e70a5e
d7f9e0cd-1255-45b5-a74d-a9f91f41dc1d
dcfc0a5f-2b12-4581-a4f9-4cd797058d33
23e65e35-0446-45f7-ace3-f29b34e8b117
180c325b-cb8b-4517-b771-e9209803c50b
982ee3bf-47b9-49f4-963e-26331f606658
8e105b8d-171c-43d1-816a-a48b98f2cf23
c7a96786-85dd-4078-a72a-22250a75e783
ee95faa8-ed7b-4ad6-bde9-e42d6298f78e

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, 1118👍, 0💬