Privacy Policy

Last updated: March 25, 2026

DWG Viewer Online ("we," "us," or "our") operates the website dwgvieweronline.com (the "Service"). This Privacy Policy describes how we collect, use, and protect your information when you use our Service.

1. Information We Collect

1.1 File Data

We do not collect any file data. All files you open using DWG Viewer Online are processed entirely on your device using client-side JavaScript and WebAssembly. Your DWG, DXF, STL, OBJ, and other CAD files are never uploaded to our servers or any third-party servers. Your files never leave your device.

1.2 Personal Information

We do not require account creation or registration to use our Service. We do not collect personal information such as names, email addresses, or phone numbers unless you voluntarily contact us.

1.3 Automatically Collected Information

When you visit our website, the following information may be automatically collected by third-party services:

• IP address (anonymized where possible)
• Browser type and version
• Operating system
• Referring website
• Pages visited and time spent on pages
• General geographic location (country/region level)

2. Cookies and Local Storage

DWG Viewer Online uses localStorage (not cookies) to store your theme preference (light or dark mode). This data is stored only on your device and is never transmitted to our servers.

Third-party services integrated into our site may use cookies as described below.

3. Third-Party Services

We use the following third-party services, each of which has its own privacy policy:

3.1 Google AdSense

We may display advertisements through Google AdSense. Google may use cookies and web beacons to serve ads based on your prior visits to our website or other websites. You can opt out of personalized advertising by visiting Google Ads Settings.

3.2 Taboola

We may use Taboola for content recommendations and advertising. Taboola may collect and use data in accordance with its own Privacy Policy.

3.3 Google Analytics

We may use Google Analytics to understand how visitors interact with our website. Google Analytics collects anonymized usage data. You can opt out by installing the Google Analytics Opt-out Browser Add-on.

3.4 Content Delivery Networks (CDNs)

We load certain libraries from third-party CDNs including jsDelivr to serve Three.js and related resources. These CDNs may log access data in accordance with their respective privacy policies.

4. How We Use Information

Any information collected through third-party services is used solely to:

• Improve the performance and usability of our Service
• Understand aggregate usage patterns
• Serve relevant advertisements to support the Service
• Maintain security and prevent abuse

5. Data Retention

We retain no user data on our servers. All file processing is performed client-side. Any data collected by third-party analytics or advertising services is subject to the data retention policies of those respective services.

6. Data Sharing

We do not sell, trade, or transfer your personal information to third parties. We do not have access to the files you view using our Service.

7. California Consumer Privacy Act (CCPA) — Your California Privacy Rights

If you are a California resident, you have the following rights under the California Consumer Privacy Act (CCPA):

• Right to Know: You have the right to request information about the categories and specific pieces of personal information we have collected about you.
• Right to Delete: You have the right to request deletion of your personal information. Since we do not collect or store personal information from the use of our viewer, there is no data to delete.
• Right to Opt-Out: You have the right to opt out of the sale of personal information. We do not sell personal information.
• Right to Non-Discrimination: We will not discriminate against you for exercising your CCPA rights.

To exercise any of these rights, please contact us at [email protected].

8. Children's Online Privacy Protection Act (COPPA)

DWG Viewer Online is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have inadvertently collected personal information from a child under 13, we will take steps to delete that information as soon as possible. If you believe a child under 13 has provided us with personal information, please contact us at [email protected].

9. Do Not Track

We respect Do Not Track ("DNT") signals sent by your browser. When we detect a DNT signal, we will not attempt to track your activity across other websites. Please note that third-party services embedded on our site may handle DNT signals differently in accordance with their own policies.

10. Data Security

Since we do not collect or store your files or personal data, the primary security measure is built into our architecture: client-side processing. Your files are never transmitted over the internet when using our viewer. We serve our website over HTTPS to ensure secure delivery of the application itself.

11. International Users

DWG Viewer Online is operated from the United States. If you are accessing the Service from outside the United States, please be aware that any information collected by third-party services may be transferred to and processed in the United States or other jurisdictions.

12. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date. We encourage you to review this Privacy Policy periodically.

13. Contact Us

If you have any questions or concerns about this Privacy Policy, please contact us:

• Email: [email protected]
• Website: dwgvieweronline.com