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Developer tools / Free online tool

UUID Generator

Generate cryptographically random version 4 UUIDs, individually or in a batch.

Runs in your browser

Make room for something unique.

Cryptographically random UUID v4 identifiers.

OUTPUT
Your result will appear here

A little input. A useful output.

Ctrl + Enter to run

Your input stays on your device. No uploads. No account. Just your result.

How to use UUID Generator

  1. 01

    Choose a count from 1 to 100.

  2. 02

    Generate UUIDs.

  3. 03

    Copy all IDs or download a text file.

A quick example

Try a simple example

INPUT
1
OUTPUT
A new RFC-compatible UUID v4 on each run.

About UUID Generator

A UUID is a 128-bit identifier. Version 4 uses random values; this tool uses the browser cryptographic random UUID API.

When it comes in handy

  • Create test record identifiers.
  • Assign independent resource IDs.

Why use it here?

  • Runs locally in your browser.
  • No account needed; copy or download your result.

A few things to keep in mind

  • Random UUIDs are not sequential.
  • An identifier is not an authentication secret.

Good questions. Simple answers.

Are the identifiers predictable?

They are generated using the platform cryptographic random source. Use a dedicated secret generator for authentication tokens.

Is my input uploaded?

No. This tool processes your input in your browser. Your input and output are not included in analytics.

A good next step

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