Privacy Policy
Last updated: September 25, 2025
🔒 Your Privacy is Our Priority
Our Excel duplicate remover tool uses advanced client-side processing technology. This means your files never leave your computer - all processing happens directly in your browser. We cannot access, view, or store any of your data.
1. Information We Collect
Unlike many online tools, we take a privacy-first approach to data handling. Our Excel duplicate remover operates entirely within your web browser using client-side JavaScript technology. This means we do not collect, store, or have access to any of your Excel files or personal data contained within them.
We may collect minimal, non-personal technical information to improve our service, including browser type, device information, and general usage statistics through privacy-respecting analytics. This information is aggregated and cannot be used to identify individual users or access their files.
2. How Our Client-Side Processing Works
Our revolutionary approach to Excel duplicate removal prioritizes your data privacy above all else. When you upload an Excel file to our tool, the entire processing workflow occurs locally on your device within your web browser. Here's exactly what happens:
- Your Excel file is read directly by your browser using secure JavaScript APIs
- All duplicate detection algorithms run locally on your device's processor
- The cleaned file is generated entirely within your browser's memory
- No data is transmitted to our servers or any third-party services
- When you download the result, it comes directly from your browser's local processing
This client-side processing technology ensures that your sensitive business data, personal information, and confidential spreadsheets remain completely private and secure throughout the entire duplicate removal process.
3. Data Security and Protection
Because our tool processes your files entirely within your browser, your data benefits from the highest level of security possible. Your Excel files never travel across the internet to reach our servers, eliminating the risk of data interception, unauthorized access, or server breaches that plague many online file processing services.
Our website uses industry-standard HTTPS encryption to protect your browsing experience and ensure that the tool's code is delivered securely to your browser. However, since no actual file data is transmitted, this encryption primarily protects the integrity of our application code rather than your personal files.
We recommend that users also maintain their own security best practices, including keeping their browsers updated, using secure networks, and maintaining appropriate backups of important files before processing.
4. Third-Party Services and Analytics
To improve our service and understand how users interact with our tool, we may use privacy-respecting analytics services that collect only aggregated, non-personal usage statistics. These services do not have access to your Excel files or any personal data contained within them.
Any third-party services we use are carefully selected based on their commitment to user privacy and data protection. We do not share, sell, or provide access to any user data with third parties for marketing, advertising, or any other commercial purposes.
If you prefer to opt out of analytics entirely, you can use browser extensions that block tracking scripts or enable "Do Not Track" settings in your browser preferences.
5. Cookies and Local Storage
Our website may use minimal cookies and local storage to enhance your user experience and remember your preferences, such as duplicate removal settings or interface customizations. These cookies do not contain any personal information or file data and are used solely for improving the functionality of our tool.
You can control cookie usage through your browser settings and delete stored data at any time. Disabling cookies will not affect the core duplicate removal functionality of our tool, as it operates independently of cookie-based features.
6. International Data Protection
Our client-side processing approach automatically complies with international data protection regulations, including GDPR, CCPA, and other privacy laws, because your data never leaves your local device. This means there are no cross-border data transfers, server storage concerns, or data processing agreements to worry about.
Regardless of your location or the location of our servers, your Excel files and personal data remain under your complete control throughout the entire duplicate removal process. This approach provides the strongest possible privacy protection while delivering powerful data cleaning capabilities.
7. Data Retention and Deletion
Since we never receive or store your Excel files, there is no data retention period or deletion process required for your file content. Once you close your browser tab or navigate away from our website, any temporary data created during the processing is automatically cleared from your browser's memory.
Any minimal usage statistics we collect are retained only as long as necessary for service improvement purposes and are automatically deleted according to our data retention policies. You can request information about any data we may have collected by contacting us directly.
8. Your Rights and Control
Because our tool operates with a privacy-by-design approach, you maintain complete control over your data at all times. You have the right to use our service without providing any personal information, and you can stop processing your files at any time simply by closing your browser or navigating away from our website.
If you have any questions about your privacy rights or how our tool handles your data, please don't hesitate to contact us. We're committed to transparency and will provide clear, honest answers about our privacy practices and technical implementation.
9. Changes to This Privacy Policy
We may update this privacy policy from time to time to reflect changes in our practices, technology, or legal requirements. Any significant changes will be clearly communicated through our website, and we will always maintain our commitment to client-side processing and data privacy.
We encourage you to review this privacy policy periodically to stay informed about how we protect your information and maintain the security of our Excel duplicate removal tool.
10. Contact Us
If you have any questions, concerns, or feedback about our privacy practices or how our Excel duplicate remover tool handles your data, we're here to help. Our team is committed to maintaining the highest standards of data privacy and security.
Email: [email protected]
We typically respond to privacy-related inquiries within 24 hours and are happy to provide additional technical details about our client-side processing approach.