Instantly generate universally unique identifiers (V4).
Specify the number of UUIDs you need and choose between lowercase or uppercase format.
Click the 'Generate' button to create a list of cryptographically-strong V4 UUIDs instantly.
Click 'Copy All' to copy the entire list to your clipboard for use in your database, code, or project.
A UUID (Universally Unique Identifier), also known as a GUID (Globally Unique Identifier), is a 128-bit number used to identify information in computer systems. A Version 4 UUID, which this tool generates, is created using random or pseudo-random numbers. The probability of two V4 UUIDs being the same is so low that they are considered unique for all practical purposes.
Absolutely. This tool uses the browser's built-in `crypto.randomUUID()` API, which is a modern, secure method for generating cryptographically-strong random identifiers. All generation happens on your device (client-side), and the generated UUIDs are never sent to our servers, ensuring complete privacy.