At Accurate Online Protractor, we take your privacy seriously. This Privacy Policy explains how we handle information when you use our online protractor tool at accurateonlineprotractor.com.

1. Information We Collect

We do not collect any personal information. Our online protractor is designed with a privacy-first approach. All angle measurements, image processing, and calculations happen entirely within your web browser. No data is transmitted to our servers.

When you upload an image or paste content from your clipboard, it is processed locally in your browser's sandbox environment. The image never leaves your device and is never stored on any external server.

2. How We Use Information

Since we do not collect personal data, there is no information to use, sell, or share. Our free online protractor operates entirely on client-side technology, meaning all computations occur on your local device.

3. Cookies and Local Storage

We use minimal local storage to remember your preferences, such as:

Theme preference (light or dark mode)
Protractor settings (radius, opacity, shape)
Screen calibration data (DPI settings)

This data is stored only in your browser and is never transmitted elsewhere. You can clear this data at any time through your browser settings.

4. Third-Party Services

Our interactive online protractor does not use any third-party analytics, advertising, or tracking services. We do not use Google Analytics, Facebook Pixel, or any similar tracking technologies.

5. Camera Access

If you choose to use our online protractor camera feature, camera access is requested directly through your browser. This feed is processed locally and is never recorded, transmitted, or stored. You can revoke camera permissions at any time through your browser settings.

6. Children's Privacy

Our online protractor for kids is safe to use. Since we do not collect any personal information, children can use our tool without any privacy concerns. Parents and teachers can放心让孩子使用我们的免费在线量角器工具。

7. Data Security

We implement industry-standard security measures. Because all data processing happens client-side, there is minimal security risk. Your images and measurements never leave your device.

8. Changes to This Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated revision date. Continued use of our online protractor tool constitutes acceptance of these changes.

9. Contact Us

If you have questions about this Privacy Policy or our free online protractor tool, please visit our Contact Us page.