UUID Generator Online
Generate secure, unique identifiers instantly for your applications and databases
Generate a UUID
Result:
Powerful UUID Generation Features
Multiple UUID Standards
Generate UUIDs according to RFC 4122 standards, including Version 1 (time-based), Version 4 (random), Version 5 (name-based), and Microsoft GUID format.
High-Performance Bulk Generation
Create up to 1,000 UUIDs simultaneously with our optimized generator. Perfect for database seeding, testing, and large-scale application needs.
Advanced QR Code Integration
Convert any UUID to a scannable QR code with one click. Download high-resolution QR codes for use in documentation, inventory systems, or asset tracking.
Developer-Friendly API
Integrate UUID generation directly into your applications with our free, RESTful API. Supports all UUID versions with flexible response formats.
Customizable Identifiers
Add custom prefixes and suffixes to your UUIDs to create domain-specific identifiers that maintain global uniqueness while adding context.
Comprehensive UUID Analysis
Decode and inspect any UUID to understand its version, components, timestamp data, and variant information with our powerful decoder tool.
UUID Applications Across Industries
Database Systems
UUIDs are ideal primary keys in distributed database systems, eliminating synchronization requirements when generating unique identifiers across multiple servers or microservices.
Web Development
Modern web applications use UUIDs for secure, unpredictable identifiers in URLs, session tokens, and content management systems to prevent enumeration attacks.
Cloud Computing
Cloud infrastructures rely on UUIDs to track virtual machines, storage volumes, and network interfaces across distributed systems without central coordination.
IoT Devices
Internet of Things ecosystems use UUIDs to assign persistent identities to devices, sensors, and data streams, enabling reliable device recognition across networks.
Healthcare Systems
Healthcare applications implement UUIDs to create globally unique medical record identifiers while maintaining patient privacy and enabling secure data exchange.
Gaming Platforms
Online gaming platforms generate UUIDs for player accounts, game instances, and in-game items to ensure uniqueness in high-volume, distributed gaming environments.
UUID Implementation Best Practices
When to Use UUID Version 4
UUID v4 (random) is ideal when you need maximum unpredictability and have no requirements for sequential ordering or timestamp information. Best for public-facing identifiers and security-sensitive applications.
When to Use UUID Version 1
UUID v1 (time-based) works best when you need chronological ordering capability or time tracking within the identifier itself. Useful for logging systems and time-sequence dependent operations.
When to Use UUID Version 5
UUID v5 (name-based) is perfect when you need deterministic, reproducible identifiers based on known information. Ideal for content addressing, URL mapping, and consistent identification of well-known resources.
Database Storage Optimization
When storing UUIDs in databases, use dedicated UUID data types when available for optimal performance. For databases without native UUID support, consider binary storage formats to save space.