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.

348b79c3-cbd4-46c7-a4f3-295ba799c488
28d75f12-629d-4c40-b08b-d41f7feb4d5c
52bd056e-2aa7-455c-9a5c-ececc645f176
526fc55e-1e59-44a4-8010-85baa9d53701
02b9771c-5f55-45ea-81fd-26e92556deb2
cd973f3b-9aed-44a1-a537-a6527052dc77
d3ef3dd6-0c53-4f61-a249-4963710ccb8d
e5f0baaf-e4ba-449c-842d-6d47cbf397f7
5e9e7b89-be3a-4b31-b5a2-66c29da7941f
3ff283bf-d6d9-4bbb-980a-bc6114e12488
223448e6-17a4-426e-a8b4-75480ebe0b78
1584f61a-ec68-4ac0-a0ad-aa95a813463f

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, 2300👍, 0💬