UUID Generator
Generate random UUIDs (Universally Unique Identifiers) instantly. Create single or bulk UUIDs with various format options.
UUID Validator
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit identifier that is unique across both space and time. UUIDs are commonly used in software development for:
- - Database primary keys
- - Session identifiers
- - Distributed systems
- - File naming
- - API request tracking
UUID Versions
Version 4 (Random): Generated using random or pseudo-random numbers. Most commonly used.
Version 1 (Time-based): Generated using timestamp and MAC address. Sortable by creation time.
Nil UUID: All bits set to zero. Used as a placeholder or default value.