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.

93720e84-b02d-4191-a55a-a2d933566d20
473ef6c9-7aaa-4183-90ed-4c0e61667261
3ff1034c-0125-4383-a412-b03ad994f39d
ffcd5671-66f5-479a-bb30-ec71aa32ad36
bef3f2dc-2f8c-4308-ad5d-f3f72b783fd6
e5682d83-faec-4a0f-b222-d563aa27fbbb
0167b564-e108-4ef5-8a03-58daf60b2d3f
6fe200b3-3ee8-4464-b266-4adbda37ff8b
1253b8ba-9dc2-4fdd-8f5a-cc6cc75b0a15
ea6e7648-0c69-4836-96bd-0fadb577b85d
86dd03c1-0899-4ffd-a945-4d57ecc3dd10
25d5c398-6ade-432d-8097-135deec2827e

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, 1424👍, 0💬