GreenLens – Sustainable Shopping Companion

Inspiration

Sustainability has become a growing concern, but many consumers struggle to identify truly eco-friendly products due to greenwashing and inconsistent sustainability labels. We wanted to create a tool that helps people make informed purchasing decisions, encouraging transparent, ethical, and sustainable consumption.

What it does

GreenLens is a mobile app and browser extension that provides real-time sustainability insights on products. Users can:

• Scan barcodes or search products online to get a Sustainability Score (0-100)
  
• See detailed lifecycle analysis, verified certifications, and brand reputation
  
• Get alerts for misleading claims (e.g., vague "eco-friendly" labels with no proof)
  
• Find better alternatives that align with sustainability goals
  

How we built it(idea)

• Frontend: React Native (mobile), React.js (browser extension)
  
• Backend: Node.js + Express, connected to sustainability databases
  
• Data Sources: Public eco-label databases, OpenFoodFacts, company ESG reports
  
• AI & NLP: To detect misleading claims and greenwashing in product descriptions
  
• Hosting & Deployment: Vercel (frontend), Heroku (backend)
  

Built With

• express.js
• heroku
• node.js
• react
• vercel