Generate universally unique identifiers (UUIDs) instantly. Supports v4 and bulk generation.
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A UUID (Universally Unique Identifier) is a 128-bit identifier that is unique across all devices and time. They're used in databases, APIs, and distributed systems where unique IDs are needed without a central authority.
UUID v4 is generated using random numbers. It's the most commonly used version because it's simple and has virtually zero chance of collision (the probability of generating two identical UUIDs is astronomically low).
Theoretically yes, but practically no. With 2^122 possible v4 UUIDs, you'd need to generate 1 billion UUIDs per second for 86 years to have a 50% chance of a single collision.