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.

1073d7d3-0091-42f5-b649-82c796969da9
d6e87197-f4c1-441c-8d77-754ebec0651d
dea992e6-7478-4f9c-8b10-bb0e70d6d533
a1151293-2cd4-4322-b583-c01a4b33879e
ffcb9c58-d1f4-453b-99a4-af47cd7f1ff5
58c0a55b-a42d-425f-871d-f3f81005e46b
a3270ab4-d75c-4ac3-9556-9e2983feeaed
230a2a29-68e4-4ed1-84a6-4065c7726194
b3737673-ba5c-4e21-abca-34fae353ddbc
2ee55835-1b71-487d-a8d4-50599721b373
911f3d4b-70cf-45a0-b95f-d02c691cd664
f919e564-ea6d-4d48-8d29-e7e017ef1996

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, 1320👍, 0💬