UUID Generator
Generate version 1, 3, 4, 5, and 7 UUIDs instantly. Create random, time-ordered, timestamp-based, or namespace-based UUIDs.
- Select your desired UUID Version from the dropdown (v1, v3, v4, v5, or v7).
- If choosing v3 or v5, provide a Namespace (DNS, URL, or custom) and a Name.
- Specify the Quantity of UUIDs you wish to generate (up to 100).
- Click the Generate UUIDs button to create your unique identifiers instantly.
- Use the handy Copy buttons to grab a single UUID or the entire list at once.
- Comprehensive Support: Generate UUID v1, v3, v4, v5, and the new time-ordered v7.
- Bulk Generation: Create up to 100 unique IDs in a single click.
- Privacy-First: Runs 100% client-side. Your data never leaves your browser.
- Custom Namespaces: Full support for standard (DNS, URL) and custom namespaces for deterministic UUIDs.
- Instant Utility: One-click copying and a clean, responsive interface.
Our UUID Generator is engineered for developers, data scientists, and system architects who require fast, reliable, and secure unique identifiers. Unlike many online tools that send requests to a server, our tool operates entirely within your browser using the uuid library.
This means zero latency and maximum privacy. Whether you need random v4 UUIDs for a database primary key, time-sortable v7 UUIDs for high-throughput applications, or deterministic v3/v5 UUIDs for legacy systems, our tool delivers instantly. It works offline, is completely free, and ensures your data remains yours.
A Universally Unique Identifier (UUID) is a 128-bit label used for information in computer systems. It allows distributed systems to uniquely identify entities without significant central coordination.
UUID v4 is completely random, making it great for general use but not ideal for database indexing. UUID v7 is time-ordered (it starts with a timestamp), making it sortable and significantly more efficient for database storage.
While theoretically possible, the probability of a collision is astronomically low (1 in 2^122 for v4). You would need to generate billions of UUIDs per second for years to have even a tiny chance of a duplicate.