Security & Privacy FAQ

Client-side processing means all file operations happen directly in your web browser using JavaScript. When you use TextFileCombiner:

• Your files stay on your device - they're never sent to our servers
• All processing happens in your browser's memory
• The actual computation runs on your computer, not on remote servers
• Once you close the tab, all traces of your files are gone

Think of it like using a desktop application, but it runs in your browser instead of being installed on your computer.

You can verify this yourself using your browser's developer tools:

• Open Network Tab: Press F12 and go to the Network tab
• Process a file: Upload and process any file
• Check requests: You'll see no outgoing requests containing your file data
• Monitor traffic: The only network activity is loading the page resources

Additionally, you can disconnect from the internet after loading our page, and all tools will continue to work perfectly - proving everything happens locally.

Your files follow this lifecycle:

• Selection: Files remain on your hard drive when selected
• Processing: Temporarily loaded into browser memory (RAM)
• Download: Processed results saved back to your device
• Cleanup: Browser automatically clears memory when you leave

We have no access to your files at any point in this process. It's physically impossible for us to see, store, or retrieve your data.

We use minimal cookies for basic functionality:

• No tracking cookies: We don't track your usage or behavior
• No personal data: No cookies contain personal information
• Local storage only: Settings preferences stored locally
• Google Analytics: Anonymous usage statistics only

You can use TextFileCombiner with cookies completely disabled - all core functionality will work perfectly.

Browser-based processing is extremely secure when done right:

• Sandboxed environment: Browsers isolate web pages from your system
• No installation required: No system-level access or permissions
• Automatic updates: Browser security patches applied automatically
• Memory isolation: Each tab has its own protected memory space

Modern browsers like Chrome, Firefox, and Edge have robust security models that protect your data during processing.

TextFileCombiner is ideal for sensitive documents because:

• No cloud exposure: Files never leave your device
• No data retention: Nothing is stored after processing
• No access logs: We can't log what we can't see
• Encrypted connection: HTTPS protects the application delivery

Many law firms, healthcare providers, and financial institutions use our tools specifically because of these security guarantees.

We use cutting-edge web technologies for secure, efficient processing:

Key libraries we use:

• PDF-lib - PDF manipulation without server processing
• Tesseract.js - Client-side OCR powered by WebAssembly
• Mammoth.js - DOCX processing in the browser
• JSZip - ZIP file handling client-side

TextFileCombiner works on any device with a modern web browser:

• Desktop: Windows, Mac, Linux - all major browsers
• Mobile: iOS Safari, Android Chrome (limited by device memory)
• Tablets: Full functionality on iPad and Android tablets
• Minimum requirements: Any browser from 2018 or newer

Performance depends on your device's processing power and available memory, not on internet speed.

Yes, we are fully GDPR compliant through privacy by design:

• No personal data collection: We can't collect what we can't access
• No data processing: All processing happens on user devices
• No data storage: Zero server-side file storage
• Right to erasure: Nothing to erase as nothing is stored
• Data portability: Users always retain full control

Our architecture eliminates GDPR concerns by never touching personal data.

While we don't claim HIPAA certification, our architecture supports HIPAA compliance:

• No PHI transmission: Patient data never leaves your device
• No storage risk: Zero server-side data retention
• Access control: Only the user has access to their files
• Audit trails: Can be implemented at the organizational level

Many healthcare organizations use our tools as part of their HIPAA-compliant workflows because the data never enters our systems.

Privacy & Security:

• Complete privacy - files never leave your device
• No risk of data breaches or leaks
• Perfect for sensitive documents

Performance:

• No upload/download time
• Processing starts instantly
• Speed limited only by your device

Reliability:

• Works offline after initial load
• No dependency on server uptime
• No service interruptions

Yes, TextFileCombiner is ideal for enterprise environments:

• Zero IT overhead: No installation or maintenance required
• Compliance-friendly: Meets strict data handling requirements
• Scalable: Each user processes on their own device
• Cost-effective: No server infrastructure needed

Absolutely! We encourage security reviews:

• Open verification: Use browser dev tools to monitor all activity
• Network analysis: Confirm no file uploads with packet inspection
• Source code review: Our JavaScript is readable and auditable
• Penetration testing: Test our security claims yourself

Many organizations have performed security audits and confirmed our privacy claims. The client-side architecture makes verification straightforward.