Generators

UUID generator

Generate random version 4 UUIDs, individually or up to 1,000 at once. Free, no sign-up, right in your browser.

Free · No sign-up · No subscription

Workspace

Locally in your browser

Browser randomness via crypto.getRandomValues, with version and variant bits set correctly. Not ordered or time-based UUIDs; global uniqueness is not guaranteed.

Result
Ready when you are.Your result will appear here after processing.

Questions about this tool

How does this tool work: UUID generator?

Free, no sign-up, right in your browser. Choose a quantity and generate UUIDs. Copy or download the list. Generating again replaces the current list.

Do these UUIDs contain my data or the time?

No. These UUID v4 values use random bytes and defined version/variant bits. Personal details, file contents and timestamps are not included.

What inputs, outputs and limits apply?

Input: Quantity from 1 to 1,000. Output: One UUID v4 per line, copyable and downloadable as TXT. Limits: Browser randomness via crypto.getRandomValues, with version and variant bits set correctly. Not ordered or time-based UUIDs; global uniqueness is not guaranteed.

Instructions, example and file limits

Formats, inputs and limits

Input
Quantity from 1 to 1,000
Output
One UUID v4 per line, copyable and downloadable as TXT
Limits & notes
Browser randomness via crypto.getRandomValues, with version and variant bits set correctly. Not ordered or time-based UUIDs; global uniqueness is not guaranteed.

Quick instructions

Choose a quantity and generate UUIDs. Copy or download the list. Generating again replaces the current list.

Practical example

Generate ten UUIDs for test records.

Additional notes

Good to know

These tools do not send your inputs to a server. Your web host processes technical connection data when you visit the site.

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