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UUID生成器
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UUID Generator Online - RFC 4122 Compliant Tool

Overview

The UUID Generator Online is a professional-grade web tool designed for developers, system administrators, and data architects who need to generate RFC 4122 compliant Universally Unique Identifiers (UUIDs). This comprehensive tool supports all standard UUID versions (v1, v3, v4, v5, and NIL) with advanced features including batch generation, custom formatting, and export capabilities.
Whether you're building distributed systems, managing databases, or developing APIs, our UUID generator provides the reliability and flexibility needed for enterprise-grade applications while ensuring global uniqueness across all generated identifiers.

Key Features

🔢 Complete UUID Version Support

  • UUID v1: Time-based with MAC address and timestamp
  • UUID v3: Name-based using MD5 hashing algorithm
  • UUID v4: Random or pseudo-random generation (most common)
  • UUID v5: Name-based using SHA-1 hashing algorithm
  • NIL UUID: Special null UUID (00000000-0000-0000-0000-000000000000)

⚡ High-Performance Generation

  • Batch Generation: Create up to 100 UUIDs simultaneously
  • Real-time Generation: Instant UUID creation with live preview
  • Custom Formatting: Add prefixes and suffixes to generated UUIDs
  • Multiple Output Formats: Standard, uppercase, lowercase options

🛡️ Enterprise-Grade Quality

  • RFC 4122 Compliance: Strict adherence to international standards
  • Cryptographically Secure: High-quality randomness for v4 UUIDs
  • Collision Prevention: Mathematically guaranteed uniqueness
  • Browser-Based: No server uploads, complete privacy protection

🔧 Developer-Friendly Tools

  • One-Click Copy: Instant clipboard integration
  • Export Options: Download as TXT, JSON, or CSV formats
  • Namespace Support: Custom namespaces for v3/v5 UUIDs
  • Validation Tools: Built-in UUID format verification

Use Cases & Applications

💻 Software Development

  • Database Primary Keys: Unique identifiers for distributed databases
  • API Development: Request tracking, session management, and correlation IDs
  • Microservices Architecture: Service instance identification and inter-service communication
  • Event Sourcing: Unique event identifiers in event-driven systems

🏗️ System Architecture

  • Distributed Systems: Cross-node unique identifiers
  • Message Queues: Unique message and transaction identifiers
  • Caching Systems: Cache key generation and invalidation
  • Log Aggregation: Distributed logging and trace correlation

📊 Data Management

  • File Naming: Ensuring unique filenames in storage systems
  • Data Migration: Unique identifiers during ETL processes
  • Backup Systems: Unique backup and snapshot identifiers
  • Version Control: Unique commit and branch identifiers

Technical Specifications

Supported UUID Versions

TABLE0

Generation Limits

  • Batch Size: 1-100 UUIDs per generation
  • Custom Prefix/Suffix: Up to 50 characters each
  • Namespace: Valid UUID format for v3/v5
  • Performance: <100ms generation time for 100 UUIDs

Output Formats

  • Standard: 550e8400-e29b-41d4-a716-446655440000
  • Uppercase: 550E8400-E29B-41D4-A716-446655440000
  • Compact: 550e8400e29b41d4a716446655440000
  • With Prefix/Suffix: prefix_550e8400-e29b-41d4-a716-446655440000_suffix

How to Use

  1. Select UUID Version: Choose from v1, v3, v4, v5, or NIL
  2. Set Quantity: Specify how many UUIDs to generate (1-100)
  3. Configure Options: Add custom prefix/suffix if needed
  4. For v3/v5: Provide namespace and name parameters
  5. Generate: Click generate or use auto-generation
  6. Copy/Export: Use one-click copy or export to file

Frequently Asked Questions

Q: What's the difference between UUID versions? A: v1 uses timestamp+MAC, v3/v5 use hashing with names, v4 is purely random. v4 is most commonly used for general purposes.
Q: Are generated UUIDs truly unique? A: Yes, UUIDs are designed to be globally unique with collision probability of less than 1 in 5.3 billion.
Q: Can I use these UUIDs in production systems? A: Absolutely. Our generator follows RFC 4122 standards and is suitable for enterprise applications.
Q: Is my data secure when using this tool? A: Yes, all generation happens in your browser. No data is sent to servers.
Q: What's the maximum number of UUIDs I can generate? A: You can generate up to 100 UUIDs in a single batch. For larger quantities, repeat the process.

Browser Compatibility

  • ✅ Chrome 60+
  • ✅ Firefox 55+
  • ✅ Safari 12+
  • ✅ Edge 79+
  • ✅ Mobile browsers (iOS Safari, Chrome Mobile)
Start generating RFC 4122 compliant UUIDs now! Perfect for developers, system architects, and anyone needing globally unique identifiers for their applications.