Generate v4 UUIDs instantly.
A UUID (Universally Unique Identifier) is a 128-bit label used for unique identification in databases, distributed systems, and APIs. This tool generates version 4 (random) UUIDs directly in your browser.
UUID v4 is generated using random numbers, unlike v1 (based on time and MAC address) or v5 (based on hashing). It is the standard choice for most applications.
Theoretically yes, but the probability is so low (roughly 1 in 2^122) that collisions are practically impossible, even with billions of generations.
Yes, generation happens locally via the Web Crypto API. No data is ever transmitted to a server.