Générateur UUID
Générez des UUIDs en ligne. Créez des identifiants UUID v4 aléatoires. Génération simple ou par lot.
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.