UUID Generator

About UUID Generator

A UUID is the standard way to generate an identifier that's guaranteed — for any practical purpose — never to collide with another one, even generated independently on a different machine with no coordination between them, which is exactly why they're everywhere in database primary keys, distributed systems, and API identifiers. The UUID Generator produces RFC 4122 version 4 UUIDs using the browser's cryptographically secure random number generator, not a weaker pseudo-random source, in whatever quantity you need at once. It's a routine tool for developers seeding test data, generating a batch of unique identifiers for a database migration, or just needing one quick UUID for a config file or a code sample without spinning up a script to generate it. Each one comes with a one-click copy button, and the whole batch can be copied together when you need several at once for a seed file or a set of test fixtures. Because generation happens entirely in your browser, there's no server round-trip and no rate limit to worry about even when generating a large batch at once.