UUID Generator

A UUID (Universally Unique Identifier) is a 128-bit identifier that is practically unique across all devices and time. UUID v4 uses cryptographically secure random numbers to generate identifiers with an astronomically low collision probability.

UUIDs are widely used as database primary keys, API request IDs, session tokens, and distributed system identifiers. The standard format uses 32 hex characters separated by 4 dashes (e.g., 550e8400-e29b-41d4-a716-446655440000).

This tool uses crypto.randomUUID() for cryptographically secure generation. All UUIDs are generated locally in your browser.