Генератор UUID v4

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🔧 UUID v4 Generator – The Ultimate Free Online Unique Identifier Tool

✅ What Is the UUID v4 Generator?

The UUID v4 Generator is a free online tool that instantly creates Universally Unique Identifiers (UUIDs) in version 4 format. UUIDs are 128-bit identifiers widely used in software development, databases, APIs, and applications to ensure uniqueness without requiring a central authority. Version 4 UUIDs are generated using random or pseudo-random numbers, making them highly suitable for scenarios where unique identifiers are crucial.

This tool is especially useful for developers, database administrators, and software engineers who need to generate random identifiers for resources, sessions, API keys, or objects. With just one click, you can create a valid UUID v4 that complies with RFC 4122 standards.

🌍 Key Features of This Free Online UUID v4 Generator

⚡ Instant UUID generation – Create UUIDs with a single click.
🔒 Secure & random – Uses random numbers for unique identifiers.
📱 Fully responsive – Works on desktop, tablet, and mobile.
💻 Developer-friendly – Perfect for APIs, apps, and databases.
🎯 No signup or installation – 100% free and browser-based.

🚀 How to Use the UUID v4 Generator

Follow these simple steps to create a UUID v4:

Go to the UUID v4 Generator page.
Click the "Generate UUID" button.
Your new unique UUID v4 will appear instantly.
Copy the UUID and use it in your application, database, or project.

🔤 Example Input

[Click "Generate UUID"]

✅ Example Output

f47ac10b-58cc-4372-a567-0e02b2c3d479

🎯 When & Why Should You Use This Tool?

UUIDs are essential whenever you need a unique identifier that is unlikely to collide with others. Typical use cases include:

Assigning unique IDs to database records.
Creating session tokens or API keys.
Generating unique file names to avoid conflicts.
Identifying objects in distributed systems.

Because UUID v4 uses random numbers, it ensures high uniqueness even across different systems, making it ideal for decentralized applications.

💡 Advanced Tips for Developers & SEO Experts

Integrate UUIDs in APIs to create unique resource identifiers.
Use UUIDs in CMS systems for unguessable URLs.
Combine UUIDs with Base64 encoding for compact tokens.
Leverage UUIDs for secure session management in web apps.

📚 Technical Background (Optional)

UUID v4 (Universally Unique Identifier, version 4) is defined by RFC 4122. It generates 128-bit values using random or pseudo-random numbers. The structure includes 32 hexadecimal digits displayed in 5 groups, separated by hyphens (8-4-4-4-12). Example: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx.

Because the randomness ensures about 2¹²² possible values, UUID v4 collisions are extremely rare, making it a reliable choice for identifiers in distributed systems.

🔎 FAQ – Frequently Asked Questions

❓ Is this UUID v4 Generator free to use?

Yes, it is completely free and requires no registration.

❓ Is my data safe when using this tool?

Absolutely. The UUIDs are generated in your browser securely, and no data is stored on any server.

❓ Can I use it on mobile?

Yes – the UUID v4 Generator is fully mobile-friendly and works on any device.

❓ What is the difference between UUID and GUID?

Both terms refer to the same concept. GUID (Globally Unique Identifier) is Microsoft's implementation, while UUID is the standardized term defined by RFC 4122.

❓ Can I generate multiple UUIDs at once?

Yes, you can refresh or use the tool multiple times to create as many UUIDs as needed.