About this extension

Sci-Paperus - Free Academic Paper Access
Instantly find free access to scientific papers while browsing academic websites. This extension automatically detects research papers and checks multiple sources for available copies.

🔍 How it works:
Simply visit any academic page with a DOI. The extension will automatically appear with a color-coded button showing if a free copy is available.

✨ Key Features:
• Automatic DOI detection on academic pages
• Checks legal open access repositories first
• Color-coded quality indicators for different sources
• One-click access to available papers
• Works on journal websites, PubMed, arXiv, and more
• Lightweight and fast

🎯 Perfect for:
• Researchers and academics
• Students working on papers
• Anyone interested in scientific literature
• Libraries and educational institutions

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Release notes for 0.2

🔍 What it does

Automatically detects DOI on academic pages
Checks Unpaywall API for legal open access versions
Falls back to alternative sources when needed
Shows floating button with color-coded quality indicators
One-click access to available papers

## ✨ Features
- Smart Source Prioritization: Legal sources first, alternatives as fallback
- Visual Indicators: Color-coded buttons showing source quality
- Cross-browser Support: Works on Chrome and Firefox
- Lightweight: Minimal performance impact
- Auto-detection: No manual input required

🎨 Quality Tiers

🟢 Tier S (Green): Gold/Hybrid Open Access
🟡 Tier A (Light Green): Bronze Open Access
🟠 Tier B (Yellow): Alternative sources
🔵 Tier C (Blue): Repository versions
⚫ Disabled (Gray): No copy found

🛠️ Technical Stack

TypeScript + Rollup
Manifest V3 (Chrome) / V2 (Firefox)
Modern ES6 modules
CSS-in-JS styling

Used by