UUID/GUID Generator
Generate unique identifiers (UUID v4) with customizable options
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Generate UUIDs
Customize your UUID generation options
How to Use UUID Generator
What is UUID?
UUID (Universally Unique Identifier) or GUID (Globally Unique Identifier) is a 128-bit number used to identify information in computer systems. UUID v4 uses random numbers to ensure uniqueness. Learn more about UUID →
Format
Standard: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx
The '4' indicates UUID version 4. You can customize the format with uppercase and hyphen options.
Common Uses
- Database primary keys
- Unique file or resource identifiers
- Session IDs and API keys
- Distributed systems where uniqueness is critical
- Testing and development
Bulk Generation
Generate up to 100 UUIDs at once for your projects. Use "Copy All" to copy all generated UUIDs or copy them individually.