UUID & GUID Generator
Generate cryptographically secure Version 4 UUIDs and GUIDs in bulk with uppercase and hyphen toggles.
About UUID & GUID Generator
Generate RFC 4122 compliant version 4 UUIDs (Universally Unique Identifiers) in quantities of 1 to 500. Toggle uppercase/lowercase, hyphens, and brackets.
How to Use UUID & GUID Generator
Select quantity of UUIDs to generate (1 to 100).
Choose format options: Hyphens, Uppercase, or Braces.
Click "Generate UUIDs".
Copy to clipboard or download as a text file.
Supported Formats & Limits
- Supported Inputs: TEXT
- Guest Maximum Size: 25 MB
- Logged-in Max Size: 100 MB
- System Compatibility: Windows, macOS, Linux, iOS & Android
Privacy & Security Guarantee
This tool processes your files entirely inside your web browser using client-side JavaScript, WebAssembly, and Canvas APIs. Your document is never uploaded to any external server, guaranteeing total confidentiality.
Frequently Asked Questions
Are generated UUIDs truly unique?
Yes, Version 4 UUIDs use 122 bits of cryptographically secure random entropy; the probability of collision is astronomically near zero.