🔍 Visual Regression Testing Tool

Catch visual bugs before users do! A comprehensive Streamlit-based solution for automated visual testing with advanced screenshot comparison, real-time progress tracking, and detailed reporting.

🛠️ Technology Stack

🎯 What Problems Does This Solve?

For QA Teams

• Catch visual regressions before they reach production
• Automate repetitive visual testing across multiple browsers and devices
• Generate professional reports for stakeholders

For Frontend Developers

• Verify responsive design across different screen sizes
• Test cross-browser compatibility automatically
• Detect layout shifts and visual inconsistencies

For DevOps Teams

• Integrate visual testing into CI/CD pipelines
• Monitor production visual health continuously
• Deploy with confidence knowing visual changes are tracked

✨ Key Features

• 🌐 Multi-Browser Testing: Chrome, Firefox, Safari, Edge support
• 📱 Device Emulation: Desktop, Tablet, Mobile testing
• 🔍 Advanced Comparison: SSIM, pixel-level, and histogram analysis
• 📊 Real-Time Progress: Live testing updates and metrics
• 📄 Professional Reports: PDF reports with detailed comparisons
• 🌍 Region Testing: Geo-specific testing with locale/timezone support
• 📈 Result Management: Export, cleanup, and detailed comparison views
• 🚀 Easy Deployment: Docker-ready with production configurations

🚀 Quick Start

Option 1: Docker (Recommended)

# Clone and deploy
git clone <your-repo-url>
cd visual_regression_testing_tool
./deploy.sh local

# Access at http://localhost:8501

Option 2: Local Python

# Install and run
./deploy-local.sh
# Access at http://localhost:8501

📖 Detailed deployment guides: README-DEPLOYMENT.md | PRODUCTION-DEPLOYMENT.md

🎯 Use Cases

Web Development Workflow

1. Staging vs Production: Compare your staging environment with production
2. Feature Branches: Test new features against main branch
3. Responsive Design: Verify layouts across devices
4. Cross-Browser: Ensure compatibility across browsers

CI/CD Integration

• Automated Testing: Run visual tests on every deployment
• Regression Detection: Catch visual changes in pull requests
• Quality Gates: Block deployments with visual regressions

🏗️ How It Works

1. Configure URLs: Add staging and production URL pairs
2. Select Browsers/Devices: Choose testing combinations
3. Run Tests: Automated screenshot capture and comparison
4. Analyze Results: Side-by-side, overlay, and diff views
5. Export Reports: PDF reports and detailed exports

📊 Comparison Views

• Side-by-Side: Staging vs Production comparison
• Overlay: Transparent overlay with opacity control
• Difference: Highlighted visual differences
• Metrics: Similarity scores and detailed analysis

🌍 Region Testing

Test your applications from different geographic locations:

• USA: New York timezone and locale
• Europe: London timezone and locale
• Asia: Tokyo timezone and locale
• Middle East: Dubai timezone and locale

📈 Perfect For

• QA Engineers - Automated visual regression testing
• Frontend Developers - Cross-browser and responsive testing
• DevOps Teams - CI/CD integration and monitoring
• Product Teams - Design validation and A/B testing
• Web Agencies - Client project quality assurance

🎯 Why Choose This Tool?

• ✅ No Complex Setup - Just run and test
• ✅ Professional Reports - PDF exports with detailed analysis
• ✅ Real-Time Updates - Live progress tracking
• ✅ Production Ready - Docker deployment with health checks
• ✅ Cross-Platform - Works on Windows, macOS, Linux

📚 Documentation

• Deployment Guide - Complete deployment instructions
• Production Setup - Production server deployment
• Local Setup - Local development setup
• File Structure - Project organization

☕ Support This Project

If this tool helps you catch visual bugs and saves you time, consider supporting the development:

🤝 Contributing

We welcome contributions! Please see our contributing guidelines and feel free to submit issues and pull requests.

📄 License

This project is open source and available under the MIT License.

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Built with ❤️ for the testing community

Catch visual bugs before users do!