Free Online UUID Generator

🔑 UUID Generator

Generate unique UUIDs with ease for your projects and applications.

Enter a name or description (optional)

✅ UUID generated successfully!

Your generated UUID will appear here...

🔍 What this tool does?

A UUID (Universally Unique Identifier) is a 128-bit identifier that is guaranteed to be unique across all systems and time. UUIDs are essential for creating non-repeating identifiers in distributed systems, databases, and applications where uniqueness is critical. This tool generates Version 4 UUIDs, which are randomly generated and provide excellent uniqueness guarantees.

UUIDs are widely used in software development for database primary keys, session identifiers, API request tracking, file naming, and any scenario where you need a unique identifier that won't conflict with others, even across different systems or organizations.

⭐ Key Features

• Fast and simple UUID generation
• Supports both basic and contextual UUID generation based on user input
• Copy UUID directly to clipboard
• User-friendly, responsive interface

⚙️ How to use?

Simply click the "Generate UUID" button to create a new unique identifier. Optionally, you can enter a name or description in the input field to help you remember what the UUID is for - this doesn't affect the UUID generation but serves as a personal reference. Once generated, click "Copy UUID" to copy it to your clipboard, or use "Reset Form" to clear everything and start fresh.

💡 Creative Use Cases

• For developers creating unique identifiers in their applications
• For software projects needing UUIDs for database records or objects
• For system integration or API clients that require unique request IDs
• For file naming systems that require guaranteed unique names
• For session management and user tracking
• For microservices communication and distributed system coordination

✨ Tool Description

UUID Generator is a free online tool that generates unique and random UUIDs (Version 4) for use in development projects, APIs, databases, and more. Fast, simple, and easy to use.

❓ FAQs

What is a UUID and why do I need one?

A UUID (Universally Unique Identifier) is a 128-bit number that is guaranteed to be unique. You need UUIDs when you want to create identifiers that won't conflict with others, even across different systems, databases, or time periods.

What version of UUID does this tool generate?

This tool generates Version 4 UUIDs, which are randomly generated. They provide excellent uniqueness guarantees and are the most commonly used type of UUID in modern applications.

How unique are the generated UUIDs?

Version 4 UUIDs have a probability of duplication so low that it's considered negligible for practical purposes. The chance of generating two identical UUIDs is approximately 1 in 5.3 x 10^36.

Can I use these UUIDs in my commercial projects?

Yes! UUIDs are not copyrighted and can be freely used in any project, commercial or otherwise. They are a standard format defined by RFC 4122.

Does the name/description I enter affect the UUID generation?

No, the name or description field is purely for your reference and doesn't influence the UUID generation process. All UUIDs are generated randomly regardless of the input.

Are the generated UUIDs stored anywhere?

No, all UUID generation happens locally in your browser. Nothing is stored on our servers, ensuring complete privacy and security of your generated identifiers.