EN RU ES PT

UUID Generator

Generate random UUIDs (v4) or time-based UUIDs (v1). Create multiple UUIDs at once for batch operations.

Input
Result

Frequently Asked Questions

What is the difference between UUID v1 and v4?

UUID v1 is time-based and includes the timestamp and MAC address. UUID v4 is completely random, which is preferred for most applications.

Are UUID v4 values truly unique?

The probability of a UUID v4 collision is astronomically low. With 122 random bits, you would need to generate billions of UUIDs before a collision becomes likely.

What is a GUID?

GUID (Globally Unique Identifier) is Microsoft's term for UUID. They are functionally identical.