UUID Generator
Generate UUID v4 identifiers in bulk. Copy individual UUIDs or all at once. Free, instant, no server involved.
Click “Generate” to create UUIDs
What is a UUID?
UUID (Universally Unique Identifier) is a 128-bit identifier standardized by RFC 4122. Version 4 UUIDs are randomly generated, making collisions extremely unlikely. They are widely used as database primary keys, session tokens, file names, and API identifiers.
UUID v4 Format
A UUID v4 follows the format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx, where x is a random hex digit and y is one of 8, 9, a, or b. The “4” indicates version 4 (random).