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UUID Generator

Create one or many RFC 4122 UUIDs instantly.

Features

  • • RFC 4122 Compliant: Generates version 4 UUIDs following the standard
  • • Bulk Generation: Create 1 to 1000 UUIDs at once
  • • Cryptographically Secure: Uses crypto.randomUUID() for true randomness
  • • Copy to Clipboard: Easy copying of generated UUIDs
  • • Instant Generation: No server requests, all processing in browser

Quick Examples

UUID Generator

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UUID Formats

Standard Format
123e4567-e89b-12d3-a456-426614174000
Most common format with hyphens
Compact Format
123e4567e89b12d3a456426614174000
Without hyphens (32 characters)
URN Format
urn:uuid:123e4567-e89b-12d3-a456-426614174000
With URN prefix
Braced Format
{123e4567-e89b-12d3-a456-426614174000}
With curly braces

Common Use Cases

Database & Development

  • • Primary keys in databases
  • • Unique identifiers for records
  • • Testing and development
  • • Data migration scripts

API & Integration

  • • API request IDs
  • • Session tokens
  • • Transaction IDs
  • • Correlation IDs

File & System

  • • File naming
  • • Temporary directories
  • • Cache keys
  • • Configuration IDs

Technical Information

UUID Version 4

  • • Random Generation: All bits are randomly generated
  • • Collision Probability: Extremely low (2^122 possible values)
  • • Format: 8-4-4-4-12 hexadecimal digits
  • • Length: 36 characters (including hyphens)

RFC 4122 Compliance

  • • Version: 4 (random UUID)
  • • Variant: 2 (RFC 4122 variant)
  • • Standard: IETF RFC 4122
  • • Compatibility: Widely supported across platforms