UUID Builder is a free developer-first UUID/GUID toolkit for generating unique identifiers online. It supports UUID v1, v3, v4, v5, and v7, making it useful for different backend, database, and API use cases. Developers can quickly generate single or bulk UUIDs, copy results, download them as text, and compare UUID versions to choose the right identifier type for their project. UUID Builder is useful for API resource IDs, database primary keys, distributed systems, queues, async jobs, test data, uploads, invitations, temporary records, and other backend workflows. Unlike simple UUID v4-only generators, UUID Builder also supports UUID v7, which is useful when developers need time-sortable identifiers for modern database usage.
