Random UUID Data Generator

GUID Generator

This online tool allows you to generate the GUID ( Globally Unique Identifier ) strings. GUID is a 128-bit integer number used to identify resources uniquely.

What is UUID?

You can use GUID codes as serial numbers for Windows & Mac software, or coupon codes for your online stores, etc. 

GUIDs are usually stored as 128 bit values, and are commonly displayed as 32 hexadecimal digits with groups separated by hyphens, such as {342AF898-112B-3D49-9E79-15501469165A}.

GUID versions have different uniqueness properties and probabilities, ranging from guaranteed uniqueness to likely non-uniqueness.

GUIDs are a very useful tool for your web and application developers.
A short identifier can be created by applying a modified version of base 36 or base 64 encoding. 

What is the difference between GUID and UUID? 

Both terms apply to the same technical definition as that described in specification RFC 4122. 
Using Microsoft technologies, the term GUID is commonly used most among developers. 

UUID is an acronym for 'Universally Unique Identifier'. 
GUID is an acronym for 'Globally Unique Identifier'.

What Are The Different Ways To Generate GUID?

• Random GUID: Using a random number generator to generate the 128-bit number.
• Time & MAC Address Based GUID: Using current system timestamp and the machine's MAC address to generate the 128-bit number.
• MD5 Hashing Based GUID: Using MD5 hashing algorithm to hash the namespace (URLs, fully qualified domain names, and object identifiers) to generate the 128-bit number.
• SHA1 Hashing Based GUID: Using SHA1 hashing algorithm to hash the namespace (URLs, fully qualified domain names, and object identifiers) to generate the 128-bit number.

Fake UUID Examples

uuid : Generate a random UUID.
// 'bf91c434-dcf3-3a4c-b49a-12e0944ef1e2', '5b2c0654-de5e-3153-ac1f-751cac718e4e'

What Exactly is a GUID?

'Globally Unique Identifier' (or 'Universally Unique Identifier') is an acronym for 'Globally Unique Identifier' (or 'Universally Unique Identifier'). It's a 128-bit integer number that serves as a resource identifier. Developers working with Microsoft technology typically use GUID, but UUID is used everywhere else.

What Makes a GUID So Special?

The generation technique is unique enough that if 1,000,000,000 GUIDs per second are generated for a year, the chance of a duplicate is under 50%. Alternatively, if every human on the planet generated 600,000,000 GUIDs, there would only be a 50% chance of a duplicate.

What Are GUIDs, and How Do They Work?

GUIDs are used as database keys, component identities, and just about anyplace else, a unique identifier is required. It is incorporated in software development such as  PHP, Python, C#, Java, and C++. In COM programming, GUIDs are also used to identify all interfaces and objects.

What is a Version 1 UUID?

A Version 1 UUID is a universally unique identifier created using a timestamp and the computer's MAC address.

What is a version 2 UUID?

Version 2 UUIDs are similar to version 1 with DCE security.  RFC 4122 has designated this version as reserved. Therefore no additional information is available. As a result, most UUID libraries bypass version 2 implementation, resulting in version 2 UUIDs not being utilized in practice.

What is a version 3 UUID?

The MD5 hashing technique is used to generate a UUID in Version 3.

What is a UUID version 4?

A Version 4 UUID is a randomly generated universally unique identifier (UUID). This site's Version 4 UUIDs were generated using a secure random number generator.

What is a version 5 UUID?

Version 5 - UUIDs in version 5 are comparable to version 3 but have more excellent encryption. The MD5 hashing algorithm is now thought to be insecure and easy to crack. As a result, MD5 was replaced with SHA-1, a superior hashing technique, in version 5 UUIDs. However, due to today's fast-paced technology, SHA-1 is experiencing the same security concern as MD5. As a result, using version 5 UUIDs is no longer recommended.