Developer & Data

UUID Generator

Generate cryptographically random RFC 4122 version 4 UUIDs in this browser.

01Runs in this browser
02Limits are explicit
03Copy or download output

No black box

How this tool handles the input

The browser Web Crypto API supplies random bytes; version and variant bits are set to the UUIDv4 layout.

Before you start

What you need

A whole-number batch size from 1 to 100.

What you get

What the page gives back

One UUIDv4 per line, ready to copy or download.

Keep in mind

Use the result responsibly

UUIDs are identifiers, not passwords, API keys, proof of existence, or authorization decisions.

Practical uses

Where this tool earns its place

Create IDs for local fixtures.
Prepare correlation IDs for a test run.
Generate placeholder record identifiers.

Verified data boundary

Source text stays on this page.

The published contract marks these tools as client-only processing. Nirmion uses the API only to confirm that this workspace is enabled in MySQL; source values and results are not sent to Flask.