Generate one or many UUIDs in a click. Supports UUID v4 (random) and UUID v7 (time-ordered, good for database indexes). All generated using your browser's secure random generator – nothing is sent to any server.
UUID v4 vs v7 – which one do you need?
UUID v4 is purely random – 122 bits of randomness. Great for identifiers where you don't care about order, but can cause index fragmentation in databases.
UUID v7 encodes the current timestamp in the first bits, then fills the rest with randomness. This makes UUIDs roughly time-ordered, which means better database index performance (B-tree nodes stay compact). Newer applications often prefer v7 for primary keys.