Identity
UUID Generator
Generate random UUIDs (v4) for database keys and unique identifiers.
Uses the browser's crypto API to generate RFC 4122 v4 identifiers.
About UUID Generator
The UUID Generator creates cryptographically secure Version 4 (random) identifiers. Whether you call it a GUID or a UUID, this tool produces valid, RFC 4122 compliant strings suitable for database keys and session handling.
Ensure data integrity with a collision-resistant identifier. Using a secure random uuid generator prevents the risks associated with predictable sequences or timestamp-based IDs in distributed systems. It is the standard for uniquely identifying objects in modern software architecture.
Click the "Generate" button to create a single UUID. For bulk needs, switch to Batch mode to generate up to 1000 IDs at once. You can copy the list directly to your clipboard for use in SQL scripts or testing data.
Under the Hood
UUIDs are generated using the `crypto.randomUUID()` API (available in modern browsers) which relies on the underlying OS CSPRNG (Cryptographically Secure Pseudo-Random Number Generator). This ensures v4 UUIDs meet high-entropy requirements suitable for production database keys, unlike `Math.random()`-based implementations which are not collision-resistant.