Privacy Policy
Last updated: July 26, 2026
HyperGrad Image ("we", "us", or "our") operates the website image.hypergrad.cn. This Privacy Policy explains how we collect, use, and protect your information when you use our website and tools.
1. Our Core Principle: 100% Local Processing
The most important thing to know about HyperGrad Image is that all image processing happens entirely in your browser. When you upload an image to any of our tools (SVG Optimizer, EXIF Viewer, WebP Converter, etc.), the file is loaded into your browser's memory and processed locally using JavaScript. Your images are never uploaded to our servers or any third-party servers.
2. Information We Do NOT Collect
- Your images: Files you process with our tools never leave your device.
- Processing results: Output files are generated in your browser and downloaded directly to you.
- Account information: We do not require accounts or logins. No email, no password, no personal identifiers.
- API keys: If you use our AI tools that support BYOK (Bring Your Own Key), your API keys are stored only in your browser's local storage and sent directly to the AI provider—never through our servers.
3. Information We Collect
We use third-party analytics and advertising services that may collect certain non-personal data:
3.1 Baidu Analytics
We use Baidu Analytics to understand how visitors interact with our website. This service collects anonymous usage data such as page views, visit duration, and general geographic location (country/city level). This data is aggregated and does not identify you personally.
3.2 Google AdSense
We participate in Google AdSense to display advertisements. Google and its partners may use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising by visiting Google Ads Settings. Third-party vendors and ad networks may also use cookies for ad serving purposes.
4. Cookies
Our website uses cookies for the following purposes:
- Analytics cookies: Used by Baidu Analytics to track anonymous usage statistics.
- Advertising cookies: Used by Google AdSense (if applicable) to display relevant ads.
- Local storage: Used to remember your preferences (e.g., tool settings) and BYOK API keys. This data never leaves your device.
You can control cookies through your browser settings. Disabling cookies may affect some functionality.
5. Third-Party Links
Our website contains links to other websites in the HyperGrad ecosystem (devtools.hypergrad.cn, crypto.hypergrad.cn, text.hypergrad.cn, ai.hypergrad.cn) and to our product website (hypergrad.cn). We are not responsible for the privacy practices of these external sites. We encourage you to review their privacy policies.
6. Data Security
Since all image processing is local and we do not collect or store personal data, the risk of data breaches is minimal. The only data transmitted from your browser is anonymous analytics information and ad requests.
7. Children's Privacy
Our website is not directed to children under 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us so we can delete it.
8. Your Rights
Depending on your jurisdiction (e.g., GDPR in the EU, CCPA in California), you may have the right to:
- Access the personal data we hold about you
- Request deletion of your personal data
- Opt out of data collection
- Object to processing of your data
Since we do not collect personal data beyond anonymous analytics, these rights are largely satisfied by default. To opt out of analytics, you can use a browser extension to block tracking scripts, or contact us.
9. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the updated policy on this page and updating the "Last updated" date. We encourage you to review this page periodically.
10. Contact Us
If you have any questions about this Privacy Policy, please contact us:
- Email: deepseal@hypergrad.cn
- Company: Chengdu HyperGrad Technology Co., Ltd.