Free Online UUID Generator
Generate one or multiple universally unique identifiers (UUIDs) instantly with our secure and easy-to-use tool. This generator creates Version 4 UUIDs, which are based on random numbers, ensuring a globally unique ID for your application, database, or any other development need. Customize the format and copy your UUIDs with a single click.
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About UUIDs
What is a UUID?
A UUID (Universally Unique Identifier), also known as a GUID (Globally Unique Identifier), is a 128-bit label used to uniquely identify information in computer systems. The key advantage of UUIDs is that they can be generated independently by different systems without needing a central authority to manage them, yet the chance of a collision (two different systems generating the same UUID) is virtually zero.
Common Uses for UUIDs
- Database Keys: Used as primary keys in database tables to ensure every record has a unique identifier.
- Transaction IDs: Assigning a unique ID to every transaction in a distributed system.
- Session Identifiers: Creating unique session IDs for users on a website.
- Software Development: Identifying components, interfaces, and other resources in software.