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Tools

UUID Generator

Generate one or many UUID v4 values for development and database records.

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9c1dde05-4b0a-4836-8b5f-c34a7d9d4049
e04efaeb-917d-434c-9a30-3b4609e6f7fb
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Generate one to 100 UUID version 4 values locally for development records, fixtures and test data.

How to use this tool

  1. Enter a quantity from 1 to 100.
  2. Select Generate to create UUID v4 values.
  3. Copy the list or select only the values you need.
  4. Keep the values in the format expected by your database or API.

Ways to use it

Seed development data
Create identifiers for fixtures and local test records.
Prepare API examples
Add realistic-looking UUID v4 placeholders to request or response examples.

UUID generator notes

  • The tool creates UUID version 4 values with the browser’s crypto.randomUUID API.
  • It generates between 1 and 100 values at a time and does not retain previous lists.
  • A UUID is an identifier, not a password, access token or substitute for an application’s authorisation checks.

Common questions

Which UUID version does this make?

It creates UUID version 4 values.

Are UUIDs saved?

No. Generation happens in the browser and the page does not retain the list.

Can I generate many UUIDs at once?

Yes. Enter a quantity from 1 to 100.

Can a UUID secure an API request?

No. Treat it as an identifier; use your application’s authentication and authorisation controls for access.

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