Best UUID Generator for Database Design
Free online uuid generator designed for database design
UUIDs are the standard for primary keys in distributed databases, microservices, and APIs. Our generator creates v4 UUIDs (random) and v7 UUIDs (time-sorted) — ideal for database records that need globally unique identifiers without coordination.
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Open UUID GeneratorWhy It's the Best for Database Design
- Generate UUID v4 (random) and v7 (time-sorted)
- Batch generation for seeding databases
- Nil UUID and namespace UUID support
- Copy individual or bulk UUIDs to clipboard
- Validate existing UUIDs for version and format
Pro Tips for Database Design
- Use UUID v7 for database primary keys — they are time-sortable for better index performance
- UUID v4 is best when ordering does not matter
- Batch generate UUIDs when writing database seed scripts
- Store UUIDs as binary(16) in MySQL for better performance than varchar(36)