Privacy Policy
Last updated: February 28, 2026
Overview
ZeroPNG ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we handle information when you use our website at zeropng.com (the "Service").
The short version: Your images never leave your device. All compression is performed entirely in your browser using client-side technology. We do not upload, store, or access your images in any way.
1. Information We Do NOT Collect
- Your Images: We never upload, transmit, store, or access any images you compress using ZeroPNG. All image processing happens 100% locally in your web browser.
- Personal Files: We have no access to your file system or any files on your device beyond what you explicitly select for compression.
- Account Information: ZeroPNG does not require registration or accounts. We do not collect names, email addresses, or passwords.
2. Information We May Collect
a) Analytics Data (Google Analytics)
We use Google Analytics to understand how visitors interact with our website. This may collect:
- Pages visited and time spent on pages
- Referring website or source
- Browser type and version
- Device type and screen resolution
- Approximate geographic location (country/city level)
- Anonymous usage patterns
This data is aggregated and anonymized. It does not include any information about the images you compress.
b) Advertising Data (Google AdSense)
We display advertisements through Google AdSense. Google and its advertising partners may use cookies and similar technologies to serve ads based on your prior visits to our site or other websites. You can opt out of personalized advertising by visiting Google Ads Settings.
c) Local Storage
We use your browser's localStorage to save your theme preference (dark/light mode). This data stays entirely on your device and is never transmitted to our servers.
3. Cookies
ZeroPNG itself does not set cookies. However, third-party services we use (Google Analytics and Google AdSense) may set cookies on your device. These cookies are governed by Google's privacy policies:
4. Data Security
Since your images are processed entirely within your browser and never transmitted to our servers, there is no risk of your images being intercepted, leaked, or accessed by unauthorized parties through our Service. Your data security is inherent in our architecture.
5. Service Workers & Offline Use
ZeroPNG uses a Service Worker to cache the application for offline use. This cached data is stored locally on your device and can be cleared by unregistering the Service Worker or clearing your browser's cache.
6. Third-Party Links
Our Service may contain links to third-party websites. We are not responsible for the privacy practices of these external sites. We encourage you to review their privacy policies.
7. Children's Privacy
ZeroPNG does not knowingly collect any personal information from children under 13. Since we do not collect personal information from any users, this is inherently satisfied.
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 "Last updated" date. Continued use of the Service after changes constitutes acceptance of the revised policy.
9. Contact Us
If you have any questions about this Privacy Policy, please contact us at [email protected].