Generate unique identifiers (UUID/GUID) for databases, APIs, and applications. Supports multiple formats and bulk generation.
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✨ Key Features
UUID v4 Generation
Generate cryptographically secure random UUIDs following RFC 4122
Bulk Generation
Generate multiple UUIDs at once for batch operations
Multiple Formats
Output in various formats including uppercase, no-hyphens, and more
Single UUID Generator
Bulk UUID Generator
Format Options
Format Examples
Default: 550e8400-e29b-41d4-a716-446655440000
Uppercase: 550E8400-E29B-41D4-A716-446655440000
No Hyphens: 550e8400e29b41d4a716446655440000
With Braces: {550e8400-e29b-41d4-a716-446655440000}
About UUIDs (Universally Unique Identifiers)
What is a UUID?
A UUID is a 128-bit identifier that is unique across both space and time. UUIDs are standardized by RFC 4122 and are designed to be unique without requiring a central registration authority.
UUID Structure
UUIDs are typically displayed as 32 hexadecimal digits, displayed in five groups separated by hyphens: 8-4-4-4-12 for a total of 36 characters.
Common Use Cases
- • Database primary keys
- • API request/response IDs
- • File and resource identifiers
- • Session tokens
- • Distributed system identifiers
- • Software component IDs