UUID Generator
Generate universally unique identifiers instantly. Supports multiple versions and formats.
Click "Generate" to create a UUID
Click to copy
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🔒 Privacy First: All UUIDs are generated locally in your browser using cryptographically secure random values.
How to Use UUID Generator
- Select the UUID version you need (v1, v4, v5, or v7) from the dropdown menu
- Choose the number of UUIDs to generate (1-100) using the quantity selector
- Click 'Generate UUID(s)' to create your unique identifiers
- Select your preferred output format: Standard, Uppercase, No Dashes, or Braces
- Click any UUID to copy it individually, or use 'Copy All' for bulk copying
- Use the 'Generate New' button to create a fresh batch of UUIDs
Common Use Cases
- **Database Primary Keys**: Create unique record identifiers for database tables and documents
- **API Development**: Generate unique request IDs, session tokens, and resource identifiers
- **Microservices Architecture**: Create correlation IDs for distributed system tracing
- **File and Asset Management**: Generate unique filenames and prevent naming conflicts
- **Software Development**: Create unique component IDs, test case IDs, and configuration keys
- **Cloud and DevOps**: Generate unique deployment IDs, container names, and resource tags
Why Use UUID Generator?
Support for multiple UUID versions (v1, v4, v5, v7) for different use cases
Batch generation capability for creating up to 100 UUIDs at once
Multiple output formats including standard, uppercase, no-dashes, and braced
Cryptographically secure random generation using browser Web Crypto API
One-click copying for individual UUIDs or bulk copy for entire batches
Real-time generation with instant availability of new identifiers
Tips & Best Practices
- Use UUID v4 for general-purpose unique identifiers with maximum randomness
- Choose UUID v1 when you need time-based ordering and MAC address inclusion
- UUID v5 is ideal for deterministic generation from namespace and name
- Consider UUID v7 for time-ordered identifiers with better database indexing
- Remove dashes from UUIDs when using them in URLs or file names
- Store UUIDs as binary in databases for better performance and space efficiency