UUID Generator
Generate random UUIDs (Universally Unique Identifiers) instantlySingle UUID
Options
Version
UUID v4 (Random)
Format
Lowercase
Include Hyphens
Bulk Generator
Generated UUIDs will appear here...
About UUIDs
UUID (Universally Unique Identifier) is a 128-bit identifier used to uniquely identify information in computer systems.
UUID Versions:
Format: 8-4-4-4-12 hexadecimal digits (e.g., 550e8400-e29b-41d4-a716-446655440000)
UUID Versions:
- UUID v1: Time-based UUID that includes MAC address and timestamp. Useful for sorting by creation time but may reveal MAC address.
- UUID v4: Random UUID (default). Uses random numbers and is the most commonly used version. The probability of generating duplicate UUIDs is extremely low.
- UUID v5: Name-based UUID using SHA-1 hashing. Same input (namespace + name) always produces the same UUID. Useful for generating consistent UUIDs from names.
Format: 8-4-4-4-12 hexadecimal digits (e.g., 550e8400-e29b-41d4-a716-446655440000)