UUIDv4 Generator
Generate cryptographically secure and customizable V4 UUIDs.
Welcome to our UUID generation tool! If you need unique identifiers for your applications, our tool is the perfect solution. Here, you can generate customized UUIDs according to your preferences, ensuring uniqueness and security in your projects.
If you already generated your UUIDs and want to know more, keep reading!
Table of contents
How to use the tool
Using our UUID generation tool is simple and intuitive. Follow these steps:
- Choose whether you want the generated UUIDs to be hyphen-separated.
- Select whether the letters should be uppercase or lowercase.
- Enter the number of UUIDs you want to generate.
- Click "Generate UUIDs" and you're done!
What is a UUID?
UUID stands for Universally Unique Identifier. It is an international standard used to uniquely identify information in computer systems. UUIDs are widely used to ensure that objects, resources, or database entries have unique identifiers.
How to know if a UUID is valid?
A valid UUID must follow the pattern established by RFC 4122. This includes:
- Having 36 characters in the format 8-4-4-4-12.
- Containing only numbers and letters from A to F.
- Following the specific structure for different versions (for example, v4 has a specific format for its bits).
Advantages of UUIDs
Using UUIDs offers several advantages, such as:
- Global Uniqueness: Each UUID is unique worldwide.
- Compatibility: Used and recognized in various systems and programming languages.
- Security: Difficult to duplicate or guess.
Usage examples
Some practical examples of where UUIDs are used include:
- Session identifiers in web applications.
- Primary keys in distributed databases.
- Authentication tokens in security systems.
- Product identifiers in e-commerce.
FAQs
You can generate as many UUIDs as you want using our tool, just enter the desired quantity in the appropriate field.
Yes, our algorithms ensure that each generated UUID is unique and follows international standards.
Yes, UUIDs are ideal for primary keys in databases, especially in distributed systems.
The UUIDs will still be valid, but they will have a different format. The choice to use hyphens is a matter of formatting preference.