A UUID (Universally Unique Identifier), also called a GUID, is a 128-bit value used to uniquely identify records, files, and resources without a central authority. This tool creates RFC 4122 version 4 UUIDs using your browser's cryptographically secure random number generator.

• Generate up to 1000 UUIDs at once • Cryptographically secure randomness • Optional uppercase output • Optional hyphen removal • Copy a single UUID or all of them at once

1. Choose how many UUIDs you need 2. Toggle uppercase or hyphen-free output if desired 3. Click Generate 4. Copy individual UUIDs or the whole list