生成结果1 个 UUID

Free UUID Generator - RFC 4122 Standard Tool

Professional UUID Generator for Developers

Generate RFC 4122 compliant UUIDs instantly with our free online tool. Perfect for developers, system administrators, and database architects who need reliable universally unique identifiers for distributed systems, APIs, and database applications.

Key Features

🔢 Complete Version Support

UUID v1: Time-based with MAC address
UUID v4: Random generation (most popular)
UUID v5: SHA-1 hash-based with namespace
NIL UUID: Null identifier (all zeros)

⚡ Powerful Generation Tools

Batch Generation: Create up to 100 UUIDs simultaneously
Custom Formatting: Add custom prefixes and suffixes
Export Options: Download as TXT, JSON, or CSV
One-Click Copy: Instant clipboard integration

🛡️ Privacy & Security

Local Processing: All generation happens in your browser
No Data Upload: Complete privacy protection
RFC 4122 Standard: Enterprise-grade compliance

Common Use Cases

Database Primary Keys: Distributed database identifiers
API Development: Request tracking and session management
Microservices: Service instance identification
System Integration: Message queues and cache keys

Technical Specifications

TABLE0
Generation Options
Batch Size: 1-100 UUIDs per generation
Custom Formatting: Add prefixes/suffixes (up to 50 chars)
Output Formats: Standard, uppercase, compact
Performance: <100ms for 100 UUIDs
How to Use
Select Version: Choose UUID v1, v4, v5, or NIL
Set Quantity: Enter number of UUIDs to generate (1-100)
Add Options: Include custom prefix/suffix if needed
Generate: Click generate button for instant results
Copy/Export: Use one-click copy or download files
Frequently Asked Questions
Q: What's the most common UUID version? A: UUID v4 (random) is most widely used for general applications like database primary keys and API identifiers.
Q: Are UUIDs truly globally unique? A: Yes, UUIDs have a collision probability of less than 1 in 5.3 billion, making them effectively unique.
Q: Is this tool secure for production use? A: Absolutely. All generation happens locally in your browser with no data transmission to servers.
Generate RFC 4122 standard UUIDs instantly! Free online tool for developers, perfect for database keys, API identifiers, and distributed systems.