UUID Generator

Developer

Generate random UUID v4 identifiers in one click and copy several at once. Cryptographically random and completely client-side.

4452e090-6fca-47a0-8bcf-91e78f8c2199
5f11e82a-fc51-45df-be2f-a90bb90e7057
4747d14c-0f24-4b63-ae84-aca146511226
19ebb19a-84a7-4dfd-8758-5c21ac3682ad
a24e868b-f1a9-479d-97ff-e11f91cad92a

UUID v4 values are generated with your browser's cryptographic random source. Every value is considered globally unique; the chance of a duplicate is practically zero.

What is a UUID?

A UUID (universally unique identifier) is a standard 128-bit identifier written in 36 characters, e.g. 123e4567-e89b-12d3-a456-426614174000. Version 4 is produced randomly, making collisions practically impossible across distributed systems, databases and APIs.

When should you use it?

  • Database primary keys and record identifiers.
  • API trace, session and transaction numbers.
  • Test data, form fields and temporary file names.
  • Apps where many servers create records at the same time.

Is my data safe?

Yes. Values are generated on your device using the browser's cryptographic random source; nothing is sent anywhere. The identifiers are entirely yours.

How to use UUID Generator

Generate random UUID v4 (GUID) identifiers and copy several values at once.

Use the controls above to provide your input or choose options, then review the result on the page.

Why use our UUID Generator

  • Generates random UUID v4 (GUID) identifiers in one click; copy several at once.
  • Complete the task with a focused UUID Generator workflow instead of switching between apps.
  • Open it in your browser and get started—no account or installation required.

Frequently Asked Questions

  • Are UUID and GUID the same?

    Yes — GUID is Microsoft's name for a UUID.

  • Can identifiers be changed?

    Every click produces fresh random values; generated lists are yours once copied.

  • How many values can I generate?

    As many as you like in a single batch.

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