LightUp : AI-Powered Annotations for every page on the web.

✨ Meet LightUp

Seamless AI assistance that lives in your browser. No new tabs. No context switching. No interruptions. Just highlight any text and instantly get AI-powered insights.

✨ Features

• Smart Text Analysis: Get instant explanations for complex text passages

• Multiple Modes:

  • 🔍 Explain - Detailed explanations of text
  • 📝 Summarize - Quick summaries of longer content
  • 📊 Analyze - Deep analysis of selected content
  • 🌐 Translate - Translate text into different languages

• Follow-up Questions: Ask additional questions about the analyzed content to dive deeper

• Flexible AI Backend:

  • Use OpenAI's GPT models
  • Connect to your local LLM (supports llama.cpp, LM Studio, Text Generation WebUI)
  • Grok-beta by xAI
  • Google Gemini Models
    • Gemini 1.0 Pro
    • Gemini 1.5 Pro
    • Gemini 1.5 Flash

• Dark Mode.

📥 Download

Download the latest version of LightUp from our Releases page. Choose the appropriate version for your browser and follow the installation instructions below.

🚀 Getting Started

LightUp User Guide

Installation for users

1. Download the Extension

• Go to the LightUp Releases
• Download the latest release ZIP file (lightup-vX.X.X.zip)

2. Install in Chrome/Brave
   • Open Chrome/Brave and go to chrome://extensions/
   • Enable "Developer mode" in the top right corner
   • Drag and drop the downloaded ZIP file into the extensions page OR click "Load unpacked" and select the unzipped folder.

Configuration

1. Pin the Extension

   • Click the puzzle piece icon in your browser toolbar
   • Find LightUp and click the pin icon to keep it easily accessible
   • Right-click the LightUp icon and choose "Options" to go directly to Settings

2. Choose your preferred AI backend:

   • Local LLM (requires running local serverlocal-llm-download)
   • OpenAI API (requires API key)
   • Google Gemini (requires Gemini API key and model selection)
   • Grok-beta by xAI

3. Save your settings

🔧 Usage

1. Select any text on a webpage
2. A LightUp popup will appear
3. Get instant AI-powered insights
4. Ask follow-up questions for deeper understanding

Keyboard Shortcuts

LightUp supports keyboard shortcuts for quick mode switching:

• Ctrl+Shift+Z: Switch to Explain mode
• Ctrl+Shift+S: Switch to Summarize mode
• Ctrl+Shift+A: Switch to Analyze mode
• Ctrl+Shift+T: Switch to Translate mode

After setting the mode via shortcut, simply select any text and LightUp will appear with your chosen mode.

Switching Modes

You can switch modes in two ways:

1. Using keyboard shortcuts (see above)
2. Clicking the LightUp icon in the toolbar to manually select a mode

This allows you to easily toggle between explaining, summarizing, analyzing, and translating text as per your needs.

🛠️ Development

This extension is built with:

• Plasmo Framework
• React + TypeScript
• Framer Motion for animations

🌟 Support LightUp

If you've found LightUp helpful and want to see it grow, consider supporting the project! Whether it's through a small donation, or sharing with others, every bit helps us continue improving and bringing new features to life.

You can send your support through the following cryptocurrency addresses:

• Bitcoin (BTC): bc1qfz2ccaqu579xjtfqdhr37k07u6z2g22gzkkfz2
• Ethereum (ETH): 0xc486F15697FFe7BE07709f2009e032e1d3aC78fA
• USDT (ERC-20): 0xc486F15697FFe7BE07709f2009e032e1d3aC78fA