Privacy Policy

1. Information We DON'T Collect

File Type Detector operates entirely in your browser using WebAssembly technology. We do NOT collect, store, or have access to:

• Any files you analyze
• File names or file contents
• File metadata or EXIF data
• Your personal information
• Your IP address or location
• Device information or browser fingerprints
• Usage statistics or analytics

Important: When you select or drag a file into our detector, it is processed entirely within your browser. The file never leaves your device, and we have no ability to see, access, or store it.

2. How Our Service Works

Our file detection process is designed with privacy as the core principle:

1. File Selection: You select or drag a file into the detector
2. Local Processing: Your browser reads only the first 64KB of the file
3. WebAssembly Analysis: The file header is analyzed by our WASM module running locally
4. Results Display: File type information is displayed in your browser
5. No Transmission: At no point is any data sent to external servers

This entire process happens locally on your device in milliseconds, ensuring complete privacy and security.

3. Cookies and Local Storage

Essential Functionality

File Type Detector does not use cookies or local storage for its core functionality. The application is stateless and does not store any information between sessions.

Third-Party Services

If advertising is enabled on this site, Google Ads may use cookies for the following purposes:

• To serve relevant advertisements
• To prevent showing the same ads repeatedly
• To measure ad effectiveness

You can manage cookie preferences through your browser settings or opt out of personalized advertising through Google Ad Settings.

4. Third-Party Services

Advertising (If Applicable)

If advertising is displayed on this site, it is served by Google AdSense. Google may collect data to serve relevant ads. We recommend reviewing Google's Privacy Policy if you have concerns about advertising data collection.

External Links

Our service provides links to Wikipedia, Wikidata, and Google for additional file format information. When you click these links, you leave our site and are subject to the privacy policies of those external sites.

5. Data Security

Since File Type Detector doesn't collect or transmit any data, there is no risk of data breaches, unauthorized access, or data leaks from our service. Your files remain on your device at all times.

Security measures we implement:

• HTTPS encryption for all page loads
• Content Security Policy headers
• X-Frame-Options to prevent clickjacking
• Permissions-Policy blocking camera, microphone, and geolocation access
• WebAssembly sandboxing for code execution
• No external API calls or data transmission

6. Children's Privacy

File Type Detector is a general audience service that does not collect any personal information from any users, including children under 13. Since no data is collected, transmitted, or stored, the service is safe for users of all ages.

7. Your Rights

Since we don't collect any personal data, traditional data rights (access, correction, deletion) don't apply to our core service. However, you always have the right to:

• Use the service anonymously
• Block third-party cookies through your browser
• Opt out of personalized advertising
• Contact us with privacy concerns

8. International Users

File Type Detector is accessible globally. Since all processing happens locally in your browser and no data is transmitted to servers, there are no cross-border data transfers. Your data remains in your jurisdiction at all times.

The service complies with privacy regulations including:

• GDPR (EU): No personal data processing occurs
• CCPA (California): No personal information is collected or sold
• PIPEDA (Canada): No personal information is collected

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or for legal reasons. Any changes will be posted on this page with an updated "Last Updated" date.

Since we don't collect user data or email addresses, we cannot notify users directly of changes. We recommend checking this page periodically if you have concerns.

10. Open Source Transparency

File Type Detector is an open-source project. You can inspect our entire codebase to verify our privacy claims:

• Review the source code to confirm no data collection
• Verify that all processing is client-side
• Contribute to improving the service
• Fork the project for your own use

Transparency through open source is part of our commitment to user privacy.