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.

b2882ca4-1751-46aa-b266-aef47f19b46a
79750d2d-8f56-4650-aea8-23802d5fe74d
b535dbb3-24e0-42d4-a5a1-5908ea5a8fa3
11ccb64a-d38a-4f70-bf3d-aed60882350e
e4321757-fe92-434f-9444-a9ad5d03e157
3be0cb03-2828-4d36-89f5-aef8f2e2759d
9ded1f2e-8b9c-41e7-a029-a69a07e9944f
6bc53c36-a97b-4c6c-9878-63e550ced528
3894c336-15de-4ddb-9bfa-faef9abceb11
2bd8dd28-b2d2-4a8e-8ffb-9b0142f3e422
3c3e0223-2b64-453b-9d99-4a58dac70510
e248ccc2-610e-44f3-96e1-9c2623db2982

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, 785👍, 0💬