UUID Generation Options
UUID Information
Current UUID Details
Version: 4
Variant: RFC 4122
Format: 8-4-4-4-12
Length: 36 characters
Generation Statistics
Total Generated: 0
Generation Time: 0ms
Uniqueness: Guaranteed*
Collision Probability: ~0
UUID Validator
Enter a UUID to validate
UUID Format Examples
Standard Formats:
123e4567-e89b-12d3-a456-426614174000
123E4567E89B12D3A456426614174000
{123e4567-e89b-12d3-a456-426614174000}
urn:uuid:123e4567-e89b-12d3-a456-426614174000
Version Types:
V1: Timestamp + MAC address
V3: MD5 hash of namespace + name
V4: Random or pseudo-random
V7: Unix ms timestamp + random (sortable)
V5: SHA-1 hash of namespace + name
About UUIDs (Universally Unique Identifiers)
Purpose: Generate globally unique identifiers for databases, APIs, and distributed systems.
Uniqueness: Virtually guaranteed to be unique across time and space without coordination.
Format: 128-bit value typically displayed as 32 hexadecimal digits in groups.
Standards: RFC 4122 compliant generation with multiple version support.