A UUID (Universally Unique Identifier) is a 128-bit identifier standardized by RFC 4122. UUID v4 is randomly generated and offers virtually zero chance of collision — making it ideal for distributed systems and database primary keys.

What is the difference between UUID and GUID?

UUID and GUID (Globally Unique Identifier) are functionally identical. UUID is the standardized term defined by RFC 4122, while GUID is Microsoft's implementation of the UUID standard. They can be used interchangeably.

Are UUID v4 truly random?

UUID v4 uses cryptographically strong random number generators when available. In modern browsers and Node.js, Crypto.getRandomValues() ensures high-quality randomness, making UUID v4 suitable for security-sensitive applications.

Developer

UUID Generator

Generate random UUID v4 strings. Create multiple UUIDs in bulk with one click.

Generate UUIDs

Number of UUIDs to generate (1-100)

Documentation

How to Use

Set quantity

Choose how many UUIDs you want to generate (1-100).

Generate

Click the Generate button to create your UUIDs.

Copy

Click Copy on individual UUIDs or Copy All to copy all at once.

Pro Tips

UUID v4 is randomly generated

Practically zero chance of collision

Examples

Input

Count: 1

Output

550e8400-e29b-41d4-a716-446655440000

UUID Generator

How to Use

Set quantity

Generate

Copy

Examples

FAQ

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UUID Generator

How to Use

Set quantity

Generate

Copy

Examples

FAQ

What is a UUID?

What is the difference between UUID and GUID?

Are UUID v4 truly random?

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