UUID Generator
Generate various types of UUIDs (Universally Unique Identifiers) in different formats.
Generate UUIDs
Click to generate new UUIDs in various formats
About UUIDs
UUID Versions
- UUID v1: Time-based with MAC address. Contains timestamp and node information, making it traceable but predictable.
- UUID v4: Randomly generated. Most commonly used due to simplicity and privacy (no traceable information).
Common Use Cases
- • Database primary keys
- • API request/session identifiers
- • File and resource naming
- • Distributed system coordination
- • Unique object identification
UUID Format
Standard UUID format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
- • 32 hexadecimal digits (0-9, a-f)
- • Displayed in 5 groups separated by hyphens
- • Total length: 36 characters (including hyphens)
- • 128-bit number (16 bytes)