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UUID Generator

Generate UUIDs

How to Use This Tool

  1. Choose the number of UUIDs you want to generate.
  2. Click the 'Generate' button.
  3. Click a generated UUID to copy it to your clipboard.
  4. Paste the UUID into your application or system.
  5. Generate more UUIDs as needed. This tool generates version 4 UUIDs.

Learn More About UUID Generator

What is a UUID?

A Universally Unique Identifier (UUID) is a 128-bit number used to uniquely identify information in computer systems. UUIDs are designed to be unique across both space and time, which means you can generate them in different locations or at different times without the risk of collision.

UUID Versions

There are several versions of UUIDs, each generated using a different algorithm. This tool generates version 4 (UUIDv4) UUIDs, which are generated using random numbers. Other versions, like UUIDv1, UUIDv3, and UUIDv5, use different methods, such as timestamps or hashing names, as seen in tools like UUID Generator v1 and UUID Generator v3.

UUIDv4

UUID version 4 (UUIDv4) is generated randomly and is defined in RFC 4122. A UUIDv4 consists of 32 hexadecimal digits, split into five groups displayed in the format xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx, where x is any hexadecimal digit and y is one of 8, 9, A, or B.

Why Use UUIDs?

  • Uniqueness: The probability of generating the same UUID twice is extremely low.
  • Decentralization: UUIDs can be generated independently without a central authority.
  • Simplicity: Generating a UUID is straightforward with readily available tools and libraries.

About UUID Generator

The UUID Generator is a tool designed to create version 4 UUIDs quickly and efficiently. It operates entirely in your browser, ensuring your data remains private. With no signup or downloads required, it's a convenient solution for developers and anyone who needs unique identifiers.
Generate UUIDs easily and securely in your browser.
Runs in browser
Yes
No signup
Required
Free to use
Yes

Examples

Generating a Single UUID

Create a unique identifier for a new database entry.
Input
Generate 1 UUID
Output
550e8400-e29b-41d4-a716-446655440000

Generating Multiple UUIDs

Create multiple unique identifiers for a batch of new users.
Input
Generate 5 UUIDs
Output
550e8400-e29b-41d4-a716-446655440000, 550e8400-e29b-41d4-a716-446655440001, 550e8400-e29b-41d4-a716-446655440002, 550e8400-e29b-41d4-a716-446655440003, 550e8400-e29b-41d4-a716-446655440004

Features

Browser-Based

Runs entirely in your browser, ensuring privacy and security.

No Signup Required

Use the tool without registration or login.

Free to Use

Generate UUIDs at no cost.

Multiple UUIDs

Generate one or many UUIDs at once.

Use Cases

  • Generate unique identifiers for database records.
  • Create session tokens for web applications.
  • Ensure unique keys for distributed systems.
  • Generate unique identifiers for IoT devices.

Frequently Asked Questions

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