🆔

UUID Generator

Generate universally unique identifiers (UUIDs) in v1 and v4 formats. Perfect for databases, APIs, and distributed systems.

UUID Settings

Generated UUIDs

#1 51a98735-c02a-4bb0-9015-4642675fdeb8
Generated 1 UUIDv4 using version 4

How to Use This Tool

How to Use:

  • Select the number of UUIDs to generate (1-100)
  • Choose UUID version (v4 recommended)
  • UUIDs generate automatically
  • Copy individual UUIDs or all at once

UUID Versions:

  • UUID v4: Random UUID, most commonly used
  • UUID v1: Time-based UUID with MAC address
  • Both versions are globally unique identifiers

Why UUIDs Matter

UUIDs are essential for modern distributed systems and applications.

Database & Development

UUIDs are essential for distributed systems, databases, and applications that need globally unique identifiers without coordination.

Security & Privacy

UUIDs provide better privacy than sequential IDs and are harder to guess, making them ideal for public-facing identifiers.

Frequently Asked Questions

What's the difference between UUID v1 and v4?

UUID v1 includes timestamp and MAC address information, while UUID v4 is purely random. v4 is more commonly used due to privacy concerns with v1.

Are UUIDs guaranteed to be unique?

While not mathematically guaranteed, UUIDs have an astronomically low probability of collision. For practical purposes, they can be considered unique.

When should I use UUIDs?

Use UUIDs when you need globally unique identifiers, especially in distributed systems, APIs, or when you want to avoid sequential ID enumeration.

Can I use these UUIDs in production?

Yes! These UUIDs are generated using standard algorithms and are suitable for production use. However, for critical applications, consider using a dedicated UUID library.

Need More Development Tools?

While individual tools help with specific tasks, InstaWeb can help you build complete, professional websites in minutes. Try our AI-powered website builder today.

More Free Tools

Explore our complete collection of web development utilities

HTML Encoder

Encode and decode HTML entities safely

JSON Beautifier

Coming soon...

CSS Minifier

Coming soon...