A privacy-focused Chrome extension that analyzes your evo trip data and generates comprehensive visual reports.
- User Initiation: Click the extension icon while on a trip history page
- Auto-Scrolling: Extension automatically scrolls to load all available trip data
- Data Extraction: Non-personal trip information is scraped from the page's DOM.
- Secure Transmission: Data is sent to our analysis service via HTTPS.
- Temporary Storage: Data is stored in a temporary, in-memory cache with an automatic expiration (TTL) of 5 minutes.
- Report Generation: An interactive visual report is generated.
- User Redirect: You are redirected to your personalized, temporary report page.
Browser → Chrome Extension → HTTPS → Go Backend → Redis (TTL) → Report Generation → User Redirect
- No Data Persistence: We never store your trip data permanently
- Redis TTL: All data automatically expires from memory after 24 hours
- Temporary Processing: Data exists only during your active session
- No Tracking: We don't track users across sessions or websites
- HTTPS Encryption: All communications are encrypted end-to-end
- UUID-Based Access: Reports are accessible only via unique, unguessable URLs
- No Personal Data: We only process trip metadata, not personal information
- Open Source: Complete transparency - anyone can audit our code
- Trip dates and times
- Duration and distance
- Vehicle information (make/model, license plate)
- Cost information
- Service location (city/area)
- Personal identification information
- Login credentials
- Payment details
- Contact information
- Location data beyond trip context
- Download the extension files from our GitHub repository
- Open Chrome and navigate to
chrome://extensions/ - Enable "Developer mode" (toggle in top right)
- Click "Load unpacked" and select the extension folder
- The extension icon will appear in your toolbar
- Navigate to your car sharing service's trip history page
- Click the Trip Analyzer extension icon
- Click "Analyze & View Report"
- Wait for automatic scrolling and data collection
- You'll be redirected to your personalized report
- Handles infinite scroll pages
- Detects and clicks "Load More" buttons
- Smart scrolling with multiple fallback strategies
- Progress feedback during loading
- Total trip statistics (count, duration, cost, distance)
- Interactive charts and visualizations
- Breakdowns by day of week and vehicle
- Cost analysis and trends
- Raw data export capability
- Local data processing in your browser
- Secure API communications
- Automatic data expiration
- No persistent storage
Since this extension is fully open source:
- Security researchers can audit the code
- Users can verify no malicious behavior
- Community can suggest improvements
- Transparency in all operations
- Collection: Only from pages you explicitly visit
- Transmission: Encrypted via HTTPS to our secure API
- Processing: Temporary in-memory storage only
- Expiration: Automatic deletion after 10 minutes
- Access: Only via unique, time-limited URLs
The extension requires minimal permissions:
activeTab: To access only the current tab's contentstorage: For local extension settings (not your data)webRequest: For secure API communication
Yes. We designed this extension with privacy as the top priority:
- Data never leaves your browser without your explicit action
- All external communications are encrypted
- No personal information is collected
- All data automatically expires
Yes! The extension shows exactly what data will be sent before any transmission occurs. You can review and cancel if desired.
Maximum 24 hours in our temporary Redis storage, after which it's automatically deleted.
Yes. Simply close the report tab and the data will expire naturally within 24 hours, or you can manually delete the Redis key if you have access.
Yes, completely free and open source under the MIT License.