# Privacy Policy - NetLog Viewer Chrome Extension

**Last Updated:** September 11, 2025  
**Version:** 1.1.0

## Overview

NetLog Viewer is a Chrome extension designed to help developers and network administrators analyze Chrome's network logging data (NetLog files). This privacy policy explains how we handle your data and protect your privacy.

## Data Collection and Usage

### What Data We Collect

**We collect NO personal data.** The extension operates entirely locally within your browser and does not transmit any data to external servers.

### Local Data Processing

- **NetLog Files**: When you upload NetLog JSON files, they are processed entirely within your browser's local environment
- **User Preferences**: Settings and preferences are stored locally using Chrome's storage API
- **Session Data**: Temporary analysis data is stored locally during your session

### Data Storage

- **Local Storage Only**: All data is stored locally on your device using Chrome's `chrome.storage.local` API
- **No Cloud Storage**: We do not store any data on remote servers or cloud services
- **No External Transmission**: Your NetLog data never leaves your browser

## Permissions Explained

### Required Permissions

1. **"storage"**
   - **Purpose**: Store user preferences and session data locally
   - **Scope**: Limited to your browser's local storage
   - **Data**: Settings, preferences, and temporary analysis data

2. **"activeTab"**
   - **Purpose**: Provide context-aware analysis and enhanced user experience
   - **Scope**: Only the currently active tab when extension is used
   - **Usage**: Intelligent suggestions and workflow optimization

3. **"tabs"**
   - **Purpose**: Open chrome://net-export/ page when using the export button
   - **Scope**: Limited to creating new tabs with chrome://net-export/ URL only
   - **Usage**: One-click access to Chrome's NetLog export functionality

### What We DON'T Do

- ❌ We do not collect personal information
- ❌ We do not track your browsing activity
- ❌ We do not send data to external servers
- ❌ We do not use analytics or tracking services
- ❌ We do not access your browsing history
- ❌ We do not read content from other websites
- ❌ We do not share data with third parties

## Data Security

### Local Processing
- All NetLog analysis happens locally in your browser
- No data transmission to external services
- Your sensitive network data remains on your device

### Secure Storage
- Uses Chrome's secure storage APIs
- Data is isolated within the extension's sandbox
- Automatic cleanup of temporary data

## User Control

### Data Management
- **Full Control**: You have complete control over your data
- **Manual Upload**: NetLog files are only processed when you explicitly upload them
- **Local Deletion**: You can clear all stored data through Chrome's extension settings
- **Uninstall**: All extension data is removed when you uninstall the extension

### Transparency
- **Open Source**: Extension code is available for review
- **No Hidden Features**: All functionality is clearly documented
- **User-Initiated Actions**: All data processing requires explicit user action

## Third-Party Services

**We do not use any third-party services.** The extension operates independently without external dependencies, APIs, or services.

## Children's Privacy

This extension does not knowingly collect any information from children under 13 years of age. The extension is designed for technical users (developers, network administrators) and does not target children.

## Changes to Privacy Policy

We may update this privacy policy from time to time. Any changes will be:
- Reflected in the "Last Updated" date above
- Documented in the extension's changelog
- Made available in the extension's repository

## Contact Information

For questions about this privacy policy or the extension's data practices:

- **GitHub Issues**: [Create an issue in our repository]
- **Extension Store**: Use the Chrome Web Store support options

## Compliance

This extension complies with:
- Chrome Web Store Developer Program Policies
- Chrome Extension Manifest V3 requirements
- General privacy best practices for browser extensions

## Technical Details

### Data Flow
1. User uploads NetLog file → Processed locally in browser
2. Analysis results → Displayed in extension interface
3. User preferences → Stored locally using chrome.storage.local
4. Session ends → Temporary data cleared automatically

### No External Connections
- No network requests to external servers
- No telemetry or usage analytics
- No automatic updates of external data
- No communication with third-party services

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**Summary**: NetLog Viewer respects your privacy by processing all data locally, never transmitting information externally, and giving you complete control over your data. We believe in transparency and minimal data collection principles.

**Repository**: [GitHub Repository URL]  
**License**: [License Type]  
**Version**: 1.1.0