Generate random UUIDs (v4) instantly.
Customize how many UUIDs you want to generate.
Our free UUID generator creates Version 4 (random) UUIDs instantly. UUIDs are essential for distributed systems, databases, APIs, and any application requiring unique identifiers. Generate single UUIDs or bulk generate multiple UUIDs at once.
import uuid
# Generate a random UUID
id = uuid.uuid4()
print(id)// Generate a random UUID
const id = crypto.randomUUID();
console.log(id);import java.util.UUID;
// Generate a random UUID
UUID uuid = UUID.randomUUID();
System.out.println(uuid);A UUID (Universally Unique Identifier) is a 128-bit label used for information in computer systems. The term globally unique identifier (GUID) is also used. UUIDs are standardized by RFC 4122 and are widely used in software development for creating unique identifiers without central coordination.
Version 4 UUIDs are generated using random numbers. The probability of a collision (two identical UUIDs) is so astronomically low (approximately 1 in 5.3 × 10^36) that it can be effectively ignored for most applications. For practical purposes, UUIDs can be considered unique.
UUIDs allow distributed systems to uniquely identify information without significant central coordination. They're perfect for databases, APIs, microservices, and any scenario where you need globally unique identifiers. Unlike sequential IDs, UUIDs don't reveal information about creation order or system architecture.
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