Generate cryptographically secure v4 UUIDs in bulk with instant one-click copy.
Generate cryptographically random Version 4 UUID (GUID) strings in single or bulk quantities.
Quantity selector and formatting toggles (uppercase, lowercase, hyphens).
Cryptographically random RFC 4122 Version 4 UUID / GUID strings.
Generate 10 unique v4 GUIDs for database primary keys or API request tracking headers.
All operations for this tool execute locally in your web browser memory using client-side WebAssembly, HTML5 APIs, or local JavaScript. Your files, text inputs, and generated data never touch our servers.
Yes. They are generated using the browser native window.crypto.getRandomValues API ensuring true collision-resistant randomness.
This tool generates Version 4 (v4) random UUIDs conforming to RFC 4122 specifications.