What is the Bulk UUID v4 Generator?
Generates a batch of random, version-4 UUIDs — up to 5,000 at a time — using the browser's cryptographically secure random number generator.
How it works
Each ID comes from crypto.randomUUID(), a built-in browser API backed by the OS's CSPRNG, with a manual Math.random()-based fallback for browsers that lack it. Results render in a virtualized list, so only the rows currently scrolled into view are mounted in the DOM — which is why generating and scrolling through thousands of IDs stays smooth.
SysAdmin & security use cases
- Seed a batch of unique primary keys for a staging database table.
- Generate placeholder IDs for mock API responses in a test suite.
- Create unique identifiers for load-testing thousands of records at once.
- Grab a single UUID for a config file or environment variable without opening a terminal.