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🆔 UUID Generator

Generate random UUIDs (version 4) instantly. Click the button below to create a new UUID.

❤️ Made by Tharmithan Nanthakumar
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📖 User Guide

How to Use This Tool

This UUID Generator allows you to create RFC4122 version 4 UUIDs instantly. Click the "Generate UUID" button to create a new unique identifier. Once generated, you can copy the UUID to your clipboard with a single click.

UUIDs are widely used in databases, distributed systems, and anywhere unique identifiers are required without a central authority. This tool is perfect for quick UUID generation for your development, testing, or production needs.

Real-World Usage Examples

  • Database Keys: Use generated UUIDs as primary keys for distributed databases like PostgreSQL, MongoDB, or DynamoDB.
  • Session Identifiers: Assign UUIDs as session tokens or API keys to ensure uniqueness and security.
  • Device IDs: Assign UUIDs to IoT devices or application installations to track them uniquely.
  • File Naming: Use UUIDs to generate unique filenames for uploads, preventing name clashes.

Frequently Asked Questions (FAQ)

What is a UUID?

UUID stands for Universally Unique Identifier. It is a 128-bit number used to uniquely identify information in computer systems.

Why use UUID version 4?

Version 4 UUIDs are randomly generated, offering a good balance of uniqueness without requiring a central authority.

Can I use UUIDs as database primary keys?

Yes, UUIDs are commonly used as primary keys in distributed systems to avoid collisions and enable easy data merging.

Are UUIDs secure?

UUIDs are designed for uniqueness, not security. For sensitive data or authentication, use additional security mechanisms.

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