A UUID (Universally Unique Identifier) is a 128 - bit label used to uniquely identify information in computer systems without requiring central coordination.

Version 1 (time-based), Version 3 (namespace with MD5), Version 4 (random), और Version 5 (namespace with SHA-1) सभी supported हैं।

हाँ, the probability of collision is negligibly small. UUID v4, for example, has 2^122 possible values, making duplicates virtually impossible.

नहीं, UUID generation happens entirely in your browser. The identifiers are created locally with JavaScript — no data is sent to any server.