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Crypto & Security / Unique identifiers

UUID / CUID Batch Generator

Generate UUID v4, GUID or CUID-like identifiers locally with crypto.getRandomValues, with copy and TXT download.

Back to Converter HubWeb Crypto Local browser processing

UUID and CUID batch generator

Generate multiple identifiers in this browser, with configurable format, case and hyphens for test data and imports.

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Secure browser randomness generates identifiers locally.

Generated values

Features and quick guide

UUID / CUID Batch Generator

Useful for fixtures, import samples and frontend development identifiers.

3-step quick guide

  1. 1
    Choose a format and quantity.
  2. 2
    Set case and hyphen preferences.
  3. 3
    Generate, copy or download the TXT output.

Privacy promise

Files and text stay in this browser tab; no upload endpoint is used.

No login or server-side file processing is used.

Frequently asked questions

Can values collide?

Secure browser randomness makes collisions extremely unlikely, but databases should still enforce a unique constraint.

How many values can I generate?

A single run generates up to 1,000 values to keep the browser responsive.

Are results saved?

No. Results stay in this tab until you copy or download them.