UUID Generator (v4)

A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. It's designed to be unique across different systems and over time. UUIDs are often represented as a 32-character hexadecimal string, typically grouped in a format like 8-4-4-4-12 (e.g., xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).

A Version 4 UUID is generated using random or pseudo-random numbers. It is the most common type of UUID used when true randomness is desired for identifiers. Our tool generates these v4 UUIDs, which are suitable for a wide range of applications where uniqueness is critical.

UUIDs are commonly used in software development for various purposes, such as: - Unique database primary keys. - Identifiers for objects or entities in distributed systems. - Session IDs. - Transaction IDs. - Any scenario where a globally unique identifier is needed without requiring a central authority to manage them.

Using our UUID Generator is straightforward: 1. Specify the 'Number of UUIDs to Generate' in the input field (default is 1). 2. Click the 'Generate UUID(s)' button. 3. The generated UUID(s) will appear in the text area below. 4. You can easily copy them using the 'Copy UUID(s)' button or clear the results with the 'Clear' button.

Yes, you can generate multiple UUIDs by entering the desired quantity (up to 100 in this tool) in the 'Number of UUIDs to Generate' field before clicking the generate button. Each UUID will be listed on a new line in the results area.

Version 4 UUIDs rely on randomness. The probability of a collision (generating the same UUID twice) is extremely low, making them practically unique for most applications. This tool uses the standard `crypto.randomUUID()` browser API (or a robust polyfill) for strong random number generation.