UUID Generator

Effortlessly generate unique Universal Unique Identifiers with our UUID Generator for your applications, databases, and more.





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About UUID Generator

The UUID Generator is a web tool in our generators family designed to create universally unique identifiers (UUIDs) for different versions – 1, 4, 5, or with default settings. A UUID is a 128-bit number used as a unique identifier in software development and database systems. This tool simplifies the process of generating UUIDs for various use cases.


  • Version Selection: Choose between different versions of UUIDs – 1, 4, and 5, or let the tool select a default version.
  • Generate Button: Click the generate button to obtain a unique UUID based on the selected version.
  • Tech Stack: Utilizes the uuid package available on npm for UUID generation.

How to Use UUID Generator

  1. Select Version: Choose the desired UUID version (1, 4, 5, or leave it as default).
  2. Click Generate: Click the “Generate” button to initiate the UUID generation process.
  3. Copy the UUID: Once generated, the unique UUID will be displayed. Copy the UUID for use in your applications or systems.


  • Ensure to select the appropriate UUID version based on your specific requirements.
  • Use the generated UUIDs as unique identifiers in your programming projects or database systems.

Example Usage

  1. Programming: Use the UUID Generator to obtain unique identifiers for objects or entities in your code.
  2. Database Systems: Generate UUIDs for primary keys or unique identifiers in database tables.
  3. Testing: Create unique test data using generated UUIDs for testing purposes.


  1. What is a UUID?

    A UUID, or universally unique identifier, is a 128-bit number used to uniquely identify information in computer systems. It is commonly used in software development, databases, and distributed systems.

  2. How is the UUID Generated?

    The UUID Generator tool uses the uuid package from npm to generate UUIDs. This package implements various versions of the UUID specification, including versions 1, 4, and 5.

  3. Can I customize the UUID format?

    The UUID Generator currently supports the selection of version 1, 4, 5, or default settings. Custom formatting options are not available within the tool.

  4. Where can I find more information on the ‘uuid’ package?

    For more details about the ‘uuid’ package, you can visit the official npm page at npmjs.com/package/uuid.

  5. Are UUIDs truly unique?

    While UUIDs are designed to be unique, the probability of generating the same UUID in different systems is extremely low due to the randomness involved in the generation process.