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Preview of Sci-Paperus

Sci-Paperus by ksantrse

Automatically finds free access to scientific papers by checking multiple sources.

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Available on Firefox for Android™Available on Firefox for Android™
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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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Required permissions:

  • Access your data for all web sites
More information
Add-on Links
  • Support site
Version
0.2
Size
12.43 kB
Last updated
2 months ago (23 Jun 2025)
Related Categories
  • Other
Licence
Apache Licence 2.0
Version History
  • See all versions
Tags
  • scholar
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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
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