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.

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.

cce01701-de2a-4a35-bb1f-579f42e9a57d
8f51fa9e-dc2a-489a-bb13-ad59dc8d9a18
47d6f9d4-3b38-4b4a-a6d7-8aa93b81d763
d4d21e15-bb60-4140-9614-4710eb67f4f3
019872a7-e636-4052-9be7-f3a9a169f2c3
870903e5-e7aa-4d28-b7d2-c8d8e04afa8a
83a4332a-9c79-451b-a286-5d21bfa0e2c4
85355f21-118a-41fb-b9e2-b05966f9ef9f
0d8ac7c2-1880-4601-a600-9e7f179b854c
9e494135-dca6-4308-bd30-2388920091d5
79d3b1b8-8bb4-449e-b079-4d7fd5b36376
b7de521c-28c8-4609-b0a4-4bc1ef7af068

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.

⇒ Test US/Canada Phone Number Generator

⇐ Test ISBN Number Generator

⇑ Test Data Generators

⇑⇑ Online Tools