UUID Generator
Generate RFC 4122 compliant UUID v4 identifiers.
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit value used to uniquely identify information. UUID v4 is randomly generated and is the most common version.
How to Use
Click "Generate" to create one or more UUID v4 identifiers. Set the quantity to generate multiple UUIDs at once. Click "Copy All" to copy all generated UUIDs to your clipboard, separated by line breaks.
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. The standard format is 8-4-4-4-12 hexadecimal characters (e.g., 550e8400-e29b-41d4-a716-446655440000). UUID v4 is randomly generated and is the most commonly used version.
Common Use Cases
Database primary keys that need to be unique across distributed systems. API request identifiers for tracing and debugging. Session tokens and temporary file names. Naming uploaded files to avoid conflicts. Generating unique identifiers for microservices and event-driven architectures.