UUID/GUID Generator
Generate unique and valid UUIDs/GUIDs. Support for UUID v1, v4 and v5.
What is UUID/GUID?
UUID (Universally Unique Identifier) or GUID (Globally Unique Identifier) is a 128-bit unique identifier used to identify information in computer systems. UUIDs are virtually unique and require no central authority for their creation.
UUID Versions
UUID v1 (Timestamp)
Generated using timestamp and MAC address. Guarantees time-based uniqueness.
Exemplo: 6ba7b810-9dad-11d1-80b4-00c04fd430c8UUID v4 (Random)
Randomly generated. It is the most common version and recommended for most cases.
Exemplo: 550e8400-e29b-41d4-a716-446655440000UUID v5 (Name + Namespace)
Generated using SHA-1 hash of a namespace and name. Always produces the same UUID for the same input.
Exemplo: 886313e1-3b8a-5372-9b90-0c9aee199e5dUse Cases
- Primary keys in databases
- Identifiers in REST APIs
- Unique file names
- Session IDs
- Event tracking
- Distributed systems
Privacy
All UUIDs are generated locally in your browser. No data is sent to external servers.
Frequently Asked Questions
UUID (Universally Unique Identifier) is a 128-bit identifier used to uniquely identify information in distributed systems.