GreenSage

Your AI-powered sustainable living coach. Calculate your carbon footprint, take daily green challenges, and discover solar savings.

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Carbon Calculator
Measure your footprint across transport, energy, food & lifestyle
☀️
Solar Savings
Estimate your solar panel savings based on your location
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Green Challenges
Daily eco challenges with streak tracking & impact scores
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Eco Shop
Curated sustainable products for every area of life
16 tons
avg US footprint/yr
4 tons
sustainable target
100% Free No Account Needed Works Offline Privacy First
🌿 GreenSage
🌍
Carbon Footprint Calculator
Estimate your annual CO₂ emissions
0 mi 100 mi 500 mi
$0 $120 $500
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tons CO₂/yr
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Solar Savings Calculator
Estimate your solar panel investment & returns
$50 $150 $600
100 500 sq ft 2000
$0.05 $0.13/kWh $0.40
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Estimated 25-Year Savings
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System Size (kW)
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Est. Install Cost
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Payback Period
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Monthly Savings
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CO₂ Offset/yr
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Trees Equivalent
Monthly Production Estimate (kWh)
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0
Day Streak
0
Total Points
Today's Progress 0 / 3
🛒 Eco-Friendly Products
Curated sustainable alternatives
📚 Green Knowledge
Learn about sustainable living & green energy
About GreenSage
GreenSage is your AI-powered sustainable living coach. Built to help you understand your environmental impact and take meaningful action to reduce it.
We believe small daily choices can create massive positive change. Whether it's reducing your carbon footprint, switching to solar energy, or choosing eco-friendly products — every action counts.
How to Use
🌍 Carbon Calculator
Answer questions about your transport, energy, diet, and shopping habits. Get a personalized carbon footprint score with actionable tips to reduce your emissions.
☀️ Solar Calculator
Enter your electricity bill, roof size, and location to estimate solar panel savings over 25 years. Includes system size, cost, payback period, and CO₂ offset.
🏆 Green Challenges
Complete 3 daily eco-challenges to build your streak. Earn points and track your cumulative environmental impact. New challenges every day.
🛒 Eco Shop
Browse curated sustainable products across categories. Each product shows its environmental impact. Links go to Amazon for easy purchasing.
📚 Learn
Educational articles about green energy, sustainable living, climate science, and practical tips for reducing your environmental impact.
Add to Home Screen
iPhone/iPad: Open in Safari → Tap the Share button (box with arrow) → Scroll down → Tap "Add to Home Screen"
Android: Open in Chrome → Tap the menu (⋮) → Tap "Add to home screen" or "Install app"
Your Data
All your data (challenges, streaks, calculator history) is stored locally on your device using localStorage. Nothing is sent to any server. If you clear your browser data, your progress will be reset.
To preserve your data, add the app to your home screen and avoid clearing browser cache for this site.
Legal & Disclaimer
Disclaimer: GreenSage provides estimates for educational purposes only. Carbon footprint calculations are approximations based on average data and may not reflect your exact situation. Solar savings estimates are based on national averages and actual results may vary based on local factors.
Affiliate Disclosure: Product links in the Eco Shop may contain affiliate links. We earn a small commission at no extra cost to you, which helps keep this app free.
Privacy: We do not collect, store, or transmit any personal information. All calculations run locally on your device.
Sources: Carbon emission factors from EPA (2023), IPCC AR6 (2021), Our World in Data. Solar data from NREL PVWatts Calculator and EnergySage market data.
Version
GreenSage v1.0 — Built with purpose. 🌿
Share & Install