UUID Generator

Max: 1000 UUIDs

Cryptographically random

Display format

UUID Information:

  • Version v4: Random UUIDs using cryptographically secure random numbers (RFC 4122 compliant)
  • Format: RFC 4122 compliant UUID format
  • Security: Uses browser's cryptographically secure random number generator
  • Uniqueness: Guaranteed to be unique across time and space

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Frequently Asked Questions

What is a UUID?

UUID stands for Universally Unique Identifier. It's a 128-bit identifier that is guaranteed to be unique across time and space. UUIDs are commonly used in software development for generating unique IDs for database records, API endpoints, and distributed systems.

What's the difference between UUID v4 and v1?

UUID v4 (random) generates completely random UUIDs using cryptographically secure random numbers. UUID v1 (timestamp-based) includes a timestamp and MAC address, making them sortable by creation time. Version 4 is more commonly used for privacy reasons.

How many UUIDs can I generate at once?

You can generate up to 100 UUIDs at once. Simply adjust the count slider or input field, then click 'Generate UUIDs'. All generated UUIDs will be displayed and can be copied individually or all at once.

Is the UUID generator free to use?

Yes! Our UUID generator is 100% free with no registration required, no usage limits, and no hidden fees. You can generate as many UUIDs as you need.

Are my UUIDs stored or tracked?

No, all UUID generation happens locally in your browser using the Web Crypto API. We don't store, save, or have access to any UUIDs you generate. Your privacy is completely protected.

Can I use these UUIDs in production?

Yes! The UUIDs generated use the browser's cryptographically secure random number generator (crypto.randomUUID()), which meets RFC 4122 standards and is suitable for production use.