QADevBench

05 / Test Data / uuid-generator

UUID Generator

Bulk UUID v4 generation.

ReadyLocal processing
05 · Workspace

How to use

  1. 01Set how many UUIDs you need (up to 10,000).
  2. 02Toggle uppercase or hyphen-free formatting if your system needs it.
  3. 03Press Generate.
  4. 04Copy the list or download it as a .txt file.

What is this tool?

Generates RFC 4122 version 4 UUIDs using the browser's random number generator. Values are created locally and never transmitted, so they are safe to use as identifiers in test fixtures, seed scripts and staging data.

Common use cases

  • Seeding primary keys in test databases
  • Creating correlation IDs for log tracing tests
  • Generating unique filenames in scripts
  • Building parametrised API test payloads

FAQ

Which UUID version is this?

Version 4 — randomly generated.

Are they guaranteed unique?

Collisions are statistically negligible for practical use.

Can I remove the hyphens?

Yes, toggle the Hyphens option off.

Is anything sent to a server?

No. Generation happens entirely in your browser.