Legal

Disclaimer

Effective: January 15, 2026 Updated: July 11, 2026 Reading Time: ~7 minutes

Please Read Carefully

Our UUID generation tools are provided for general informational and development purposes. While UUIDs are designed to be unique, absolute uniqueness cannot be mathematically guaranteed.

1. Introduction

Welcome to UUID Generator. This Disclaimer explains the limitations and scope of our free online UUID generation tools. By using our website, you acknowledge and agree to the terms outlined in this disclaimer.

This disclaimer should be read alongside our Terms of Service and Privacy Policy.

2. General Information

All UUID generation tools and services provided on UUID Generator are for general development and informational purposes only. Our tools generate UUIDs according to RFC 9562 specifications using the Web Crypto API in your browser.

While UUIDs are designed to be unique, we cannot guarantee absolute uniqueness. Collisions are theoretically possible, though extremely unlikely.

3. No Guarantee of Uniqueness

UUID Generator provides tools that generate UUIDs following standard specifications. However, it is important to understand:

  • UUID v4: Uses random values. Collision probability is approximately 1 in 2^122, which is extremely low but not zero.
  • UUID v7: Combines timestamps with random values. Collision risk is further reduced but still not mathematically impossible.
  • UUID v1: Uses timestamps and node identifiers. Collisions can occur if the same node generates multiple UUIDs at the exact same timestamp.
  • No Tool Can Guarantee: Absolute uniqueness across all space and time.

For applications requiring guaranteed uniqueness, consider using a centralized ID generation service or additional collision detection mechanisms.

4. Tool Accuracy

We strive to implement UUID generation according to RFC 9562 specifications. However:

  • UUID implementations may vary across different browsers and platforms
  • The Web Crypto API may not be available in all browsers
  • Older browsers may fall back to less secure random number generation
  • We cannot verify generated UUIDs since they never leave your browser

Always verify UUIDs in critical applications using appropriate validation tools.

5. Browser Processing

All UUID generation happens entirely inside your web browser using JavaScript and the Web Crypto API. This means:

  • UUIDs are generated locally on your device
  • We never see, store, or transmit your generated UUIDs
  • Generation quality depends on your browser's cryptographic capabilities
  • We cannot verify or audit UUIDs generated in your browser

This approach protects your privacy but also means you are responsible for verifying UUID quality for your use case.

7. Google AdSense Disclaimer

UUID Generator displays advertisements through Google AdSense.

  • Ads are served by Google and may be personalized
  • We do not endorse every advertised product or service
  • Google uses cookies for ad personalization

Learn more at Google's Advertising page.

8. Limitation of Liability

To the fullest extent permitted by law, UUID Generator shall not be liable for any damages arising from:

  • UUID collisions or duplicate identifiers
  • Data loss or corruption
  • System failures or downtime
  • Security breaches in third-party services
  • Any consequences of using generated UUIDs in production systems

9. User Responsibility

As a user of UUID Generator, you are solely responsible for:

  • Verifying UUID uniqueness for your specific use case
  • Testing UUIDs in development before production use
  • Implementing collision detection if required
  • Understanding UUID version differences
  • Using appropriate UUID versions for your application

10. Changes to This Disclaimer

We reserve the right to modify this disclaimer at any time. Updates will be reflected with a new "Last Updated" date.

11. Contact Information

Frequently Asked Questions

Are UUIDs guaranteed to be unique?+

No. UUIDs are designed to make collisions extremely unlikely, but absolute uniqueness cannot be mathematically guaranteed. UUID v4 has a collision probability of about 1 in 2^122.

Can I use generated UUIDs in production?+

Yes, but you should implement appropriate collision detection and use the right UUID version for your use case. UUID v7 is recommended for database primary keys.

Are my UUIDs stored or logged?+

No. All UUID generation happens client-side in your browser. We never see, store, or log your generated UUIDs.

What UUID version should I use?+

UUID v4 for general purposes, UUID v7 for databases and time-ordered scenarios. See our UUID guide for details.

2026 UUID Generator. All rights reserved. Free tools, used responsibly.