UUID 생성기
온라인에서 무료로 UUID를 생성하세요. 무작위 UUID v4 식별자를 만듭니다. 단일 또는 배치 생성.
Frequently Asked Questions
What is a UUID used for?
UUIDs (Universally Unique Identifiers) are used as unique IDs in databases, APIs, and distributed systems. They're designed to be globally unique without needing a central authority to coordinate.
What's the difference between UUID v1 and v4?
UUID v1 is time-based and includes the MAC address (less privacy). UUID v4 is fully random and is the most common choice for web applications. Our generator creates UUID v4.
What are the chances of duplicate UUIDs?
Astronomically low. You'd need to generate 1 billion UUIDs per second for 100 years to have a 50% chance of a single collision. For all practical purposes, they're unique.