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UUID Generator
Generate unique identifiers (UUID v4)
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit number used to identify information in computer systems. UUIDs are designed to be unique across both space and time, making them ideal for distributed systems.
This tool generates UUID v4, which uses random numbers. The probability of generating duplicate UUIDs is extremely low (practically zero).
Common Use Cases
- Database primary keys and unique identifiers
- Session IDs and authentication tokens
- File and resource naming in distributed systems
- API request tracking and correlation IDs
- Message queue identifiers
- Testing and development mock data
100% Client-Side Generation
All UUIDs are generated entirely in your browser using JavaScript. No data is sent to any server. Your generated UUIDs are completely private.