UUID Converter online - Version 4

Easily convert UUID from 32 digit string with UUID version 4 using our user-friendly online tool. Quickly transform and validate unique IDs for your data management needs

You can insert characters manually or

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## How to use this?

Insert your normal text/string above that has 32 characters and see your UUID version 4 directly.

For example:


will be converted to:


Then feel free to copy the converted string with UUID v4 format.

## What is UUID?

A Universally Unique Identifier (UUID) is a 128-bit unique identifier that can be used to identify information in computer systems. UUIDs are often used to uniquely identify resources, such as database records or files, and can be generated either by the system or by a library or service.

They are often represented as a string of 32 hexadecimal characters, with 4 hyphens separating 8 groups of 4 characters. UUIDs are designed to be unique across space and time and are often used in distributed systems to identify resources in a unique and consistent way.

## What is UUID version 4?

The most commonly used version of UUID is version 4. This version generates a random UUID, as opposed to versions 1 and 2 which use network information and a timestamp, respectively.

UUID version 4 uses a random or pseudo-random number as the source of the generated UUID. It's the most flexible version, which can be used in any type of application, and it's the most common in the industry.

Many programming languages have libraries that can generate version 4 UUIDs. The built-in libraries of Java, Python, C#, and Ruby all have methods to generate version 4 UUIDs.

## When is UUID version 4 useful?

UUID version 4 is useful in a variety of situations where a unique identifier is needed. Some common use cases include:

  • Identifying resources in a database: UUIDs can be used as the primary key for database records, ensuring that each record has a unique identifier that can be used to retrieve it.
  • Identifying files or other resources on a filesystem: UUIDs can be used as a unique identifier for files or other resources stored on a filesystem, allowing them to be easily located and accessed.
  • Identifying resources in a distributed system: UUIDs can be used to identify resources in a distributed system, such as a microservice architecture, ensuring that each resource can be uniquely identified and accessed.
  • Identifying resources in a web application: UUIDs can be used as unique identifiers for resources in a web application, such as sessions or user accounts.
  • Identifying resources in other application: UUIDs can be used in many other application like mobile apps, gaming, IoT, etc. where unique identification of any resource is required.
  • In general, any time you need a unique identifier that doesn't depend on any particular context, a version 4 UUID is a good choice.

    ## What is this page?

    A UUID converter online free tool is a web-based application that allows users to convert a string of 32 characters into a UUID version 4. This type of tool is useful for developers or other users who need to generate UUIDs for use in their applications or systems.

    To use the tool, the user simply enters a string of 32 characters into the input field on the tool's website. The tool then converts the string into a UUID version, which format it according to the UUID version 4 specification. The resulting UUID is then displayed on the website for the user to copy and use in their application or system.

    This tool can be useful in situations where a developer needs to generate a UUID for a new resource in their application, but doesn't have access to a library or service that can generate UUIDs. It's also helpful when you need to convert an existing identifier or string to UUID.

    ## WARNING !!

    It's important to note that the UUID generated by this tool may not be truly unique, as it's based on the input string which could be duplicated in the future. If true uniqueness is required, it's better to rely on a library or service that generates truly random UUIDs.