About UUID / GUID Generator
Create Version 4 UUIDs (GUIDs) securely in your browser. This tool utilizes the browser's native Crypto API to ensure true cryptographic randomness. Generate single or multiple identifiers instantly without server interaction.
Features
- Generate cryptographically secure UUID v4
- Bulk generation (up to 100 at a time)
- Configurable hyphens and casing (uppercase/lowercase)
- Instant copy functionality
Frequently Asked Questions
What is a UUID?
A Universally Unique Identifier (UUID) is a 128-bit label used for information in computer systems. Version 4 UUIDs are randomly generated and the chance of a collision is practically zero.
Are these UUIDs truly random?
Yes, we use the standard Web Crypto API (crypto.randomUUID() or crypto.getRandomValues()) to guarantee high-quality randomness.