Privacy Policy

Introduction

Sheet Cleaner is committed to protecting your privacy. This Privacy Policy explains how we handle information when you use our service.

Key Point: All file processing happens entirely in your browser. Your files never leave your device.

• All Excel and CSV file processing occurs locally in your browser using JavaScript

• No files or data are uploaded to our servers or any third-party services

• Files are read directly from your device using the FileReader API

• Processing uses client-side libraries (XLSX.js and PapaParse) without external connections

• Data exists only in your browser's memory during the active session

• Closing the browser tab immediately clears all data from memory

• We use Google Analytics 4 to understand how users interact with our service

• Analytics collects: page views, feature usage (file uploads, deduplication operations, exports)

• Analytics does NOT collect: your file contents, personal data, or any processed information

• Google Analytics may set cookies for usage tracking (you can opt-out via browser settings)

• We do not set any cookies directly from our application

• No advertising cookies or tracking pixels are used

• We do not store any of your files or processed data

• No databases or cloud storage services are used

• No user accounts or registration required

• No use of localStorage or sessionStorage for data persistence

• Temporary browser memory is automatically cleared when you close the tab

• Generated test data is created dynamically and not stored

• Static website architecture with no server-side processing reduces attack surface

• HTTPS encryption protects your connection to our website

• Client-side only processing means data never travels over networks

• No API endpoints that could be exploited

• Regular security updates for all dependencies

• Open-source code available for security audits

• Right to Access: All processing happens on your device - you have full control

• Right to Deletion: Simply close your browser tab to delete all data

• Right to Portability: Download your processed files in Excel or CSV format

• Right to Opt-out: Disable JavaScript or use browser privacy settings to block analytics

• Right to Information: This policy provides complete transparency about our practices

• Right to Complaint: Contact us with any privacy concerns

• Google Analytics 4: Used for anonymous usage statistics only

• Cloudflare Pages: Hosts our static website files (no data processing)

• No other third-party services have access to your data

• Third-party JavaScript libraries (XLSX.js, PapaParse) run locally in your browser

• We do not share, sell, or transfer any user data to third parties

• Links to external websites are clearly marked and governed by their own privacy policies

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. Continued use of the service after changes constitutes acceptance of the updated policy.

If you have any questions about this Privacy Policy or our data practices, please contact us at: