What does this tool support?

Quantity 1–100; case and dash options. Secure randomness is required. UUID generation does not guarantee absolute uniqueness.

Where is my input processed?

Tool calculations and conversions run locally in your browser. Existing analytics and advertising requests are separate from input processing.

Generate cryptographically random v4 UUID batches.

Quantity (1–100)

UppercaseWith dashes

Developer Tools Local processing

Last reviewed: 2026-10-04 · Testing methodology

Generate cryptographically random v4 UUID batches.

Quantity 1–100; case and dash options. Use Try example where available to see the expected shape.

Select the relevant mode or settings. Automatic tools update as you type; other tools use the labeled primary action.

Check the result against your input, then use the available copy or download action. Edits clear or recompute the result.

Inputs are processed in your browser. Analytics and advertising can make separate network requests.

A v4 UUID has 36 characters with hyphens: xxxxxxxx-xxxx-4xxx-[89ab]xxx-xxxxxxxxxxxx, where x is a hexadecimal digit.

Generated examples are identifiers, not credentials or proof of uniqueness across every system.

What does this tool support?: Quantity 1–100; case and dash options. Secure randomness is required. UUID generation does not guarantee absolute uniqueness.
Where is my input processed?: Tool calculations and conversions run locally in your browser. Existing analytics and advertising requests are separate from input processing.