Click "Generate" to create UUIDs
A UUID (Universally Unique Identifier) is a 128-bit identifier that is unique across both space and time. This tool generates version 4 UUIDs, which are random-based. UUIDs are commonly used as database primary keys, session IDs, and in distributed systems where unique identification is required without central coordination.
A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information. The chance of collision is astronomically low — even generating billions, duplicates are practically impossible.
UUID v4 (random) is the most common and suitable for most applications. UUID v1 includes timestamps and MAC addresses (less privacy). Our generator produces v4 UUIDs using cryptographically strong randomness.
Use UUIDs for distributed systems, multi-database setups, client-side ID generation, and when you need IDs before database insertion. They prevent ID conflicts in decentralized environments.
Our tool supports batch generation of up to 1000 UUIDs at once. You can copy individual UUIDs or the full batch list formatted for easy use in code, spreadsheets, or API payloads.