Generate a batch of UUID v4 identifiers directly in your browser when you need random IDs for database rows, API fixtures, object keys, test payloads, import templates, or one-off operational work.
What UUID v4 Provides
UUID v4 is a 128-bit identifier built mostly from cryptographically secure random bytes. The version and variant bits are fixed by the RFC 4122 layout, so a UUID v4 has the familiar xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx shape while still carrying a very large random space.
Pick A Practical Batch Size
The default batch gives you enough IDs for many fixture and spreadsheet workflows without making the page hard to scan. Increase the count when you are preparing a larger import, or reduce it when you only need a handful of identifiers for a request sample or manual database edit.
Copy Or Export
Review the generated list, then copy it into your editor or download a plain-text file. Every value is generated locally, and the current batch is never uploaded by this tool.
Collision Guidance
UUID v4 collision risk is extremely low for normal application workloads, but it is not a substitute for a database uniqueness constraint. Keep enforcing uniqueness where the ID becomes a primary key, public token, or durable reference.