UUID / GUID Generator

Generate cryptographically random version 4 UUIDs, individually or in bulk. It is fast, free, and designed for everyday development work.

Browser workspace
Your result will appear here.

🔒Private by design. Nothing is uploaded—this tool runs entirely in your browser.

How to use this tool

  1. Paste or type the content you want to process in the input area.
  2. Add the second input or options shown for this tool, when required.
  3. Select “Generate UUIDs” to process everything locally in your browser.
  4. Check the result carefully, then use the copy button to save it.

How UUID / GUID Generator works

A version 4 UUID is a 128-bit identifier whose random bits make accidental collisions extremely unlikely. UUIDs are useful for test records, distributed identifiers, database keys, and request correlation.

The generator uses the browser’s cryptographically secure random source through crypto.randomUUID and produces standard lowercase identifiers in the 8-4-4-4-12 format. Bulk generation repeats the same local operation.

Random UUIDs do not encode creation time or business information and should not be treated as passwords. Confirm database type and casing requirements, and use a server-side uniqueness constraint when identifiers become permanent records.

Frequently asked questions

What does UUID / GUID Generator do?

Generate cryptographically random version 4 UUIDs, individually or in bulk.

Is UUID / GUID Generator free?

Yes. You can use the complete tool without an account, subscription, or usage limit.

Is my input uploaded anywhere?

No. The tool processes your input inside the current browser tab and does not send editor content to a Toolsvanta processing server.

Does it work on mobile?

Yes. The input, controls, and results adapt to smaller screens, although larger code or data samples are usually easier to inspect on desktop.

Can I use the result in a commercial project?

Yes. You may use the result in personal or commercial work. Always review and test important output before deploying it.

Does Toolsvanta save my work?

No. Input and results are not saved by the tool. Copy anything you want to keep before closing or refreshing the page.

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