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Free UUID Generator

Generate secure UUID v4 or UUID v7 values instantly in your browser.

UUID Generator workspace

Generated UUID

UUID v4, standard format

1-1,000

Generated locally with browser crypto. Nothing is uploaded or stored.

What is a UUID Generator?

A UUID Generator creates unique identifiers that developers use for database rows, API records, test data, logs, and distributed systems. This tool generates UUID v4 and UUID v7 values locally in your browser so the result is ready to copy without sending anything to a server.

How It Works

Generate a UUID in seconds

  1. Open the tool

    A secure UUID v4 is generated immediately.

  2. Adjust only if needed

    Open More Options for UUID v7, multiple results, quantity, or formatting.

  3. Copy the result

    Copy one UUID or the full generated set for your project.

Features

Built for quick identifier generation

  • Secure browser randomness

    Uses the browser crypto API instead of weak random methods.

  • UUID v4 and v7

    Generate random UUID v4 values or time-ordered UUID v7 values.

  • Single or multiple results

    Copy one UUID or generate a unique set when you need test data.

  • Copy-ready formats

    Switch between standard, uppercase, and no-hyphen output.

  • Browser-only generation

    UUIDs are generated on your device and are not uploaded or stored.

Frequently Asked Questions

Quick answers to common questions about using this tool.

Are generated UUIDs uploaded or stored? +

No. UUID generation runs in your browser. Generated UUIDs are not sent, stored, logged, or saved by PotatoTools.

What UUID versions are supported? +

The tool supports UUID v4 for random identifiers and UUID v7 for timestamp-based identifiers.

Does this UUID generator use secure randomness? +

Yes. UUID values are generated with the browser crypto API and do not use weak random methods.

Can I generate multiple UUIDs? +

Yes. Open More Options, switch to Multiple, choose a quantity from 2 to 100, and copy the full set.

Can I remove hyphens or use uppercase UUIDs? +

Yes. More Options lets you copy standard lowercase UUIDs, uppercase UUIDs, or no-hyphen UUID strings.

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