Privacy Policy

Last Updated: August 13, 2026

1. Introduction

ChaiNiu (chainiu.com) respects your privacy. This policy explains how we handle your data.

2. Data Stays Local

All tools run locally in your browser. Your input data is never uploaded to our servers. You can use them with confidence.

3. Exceptions

The QR code generator uses an external service (qrserver.com). Input content is sent to that service to generate the QR code. All other tools run entirely locally.

4. Cookies

This site does not use cookies to track users and does not collect personal identity information. Access logs are used only for traffic statistics.

5. Third-Party Ads

This site may display third-party ads (such as Google AdSense). Advertisers may use cookies to show relevant ads.

6. Contact

📧 Email: zz@cengda.com