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About UUID Generator
UUID Generator creates RFC 4122-compliant UUIDs (v4 random, v7 time-ordered) and ULIDs for use in application development. UUIDs are used as primary keys in databases, unique filenames, session identifiers, and distributed system record IDs.
Use UUID v4 when you need a globally unique random identifier and creation order doesn't matter. Use UUID v7 or ULID when you need IDs that sort chronologically — ideal for database indexes and event sourcing systems. Bulk generation (up to 100 at once) saves time when seeding a test database.
All IDs are generated using the browser's cryptographically secure random number generator (crypto.getRandomValues). Nothing is sent to a server.