AlphaDrop

AI-powered background removal for Chrome. Available in two versions:

Versions

1. Client-Side Extension (Recommended)

Location: extension-clientside/

Runs entirely in your browser - no server required.

• 100% local processing
• Privacy-first (images never leave your device)
• Works offline after initial model download
• Uses RMBG-1.4 AI model via WebAssembly

See extension-clientside/README.md for details

2. Server-Based Extension

Location: extension/ + backend/

Original version requiring a backend server.

• Requires Python backend running
• More processing options
• Better for batch processing

Quick Start (Client-Side)

cd extension-clientside
npm install
npm run build

Then load the extension-clientside folder as an unpacked extension in Chrome.

Features

• Right-click any image on the web to remove background
• Upload images directly from your computer
• Two AI modes:
  • Alpha - Soft edges for hair, fur, transparency
  • Object - Hard edges for products, logos
• Refinement tools - Feather, edge adjust, smooth, eraser
• Crop & Download as transparent PNG

Project Structure

AlphaDrop/
├── extension-clientside/   # Standalone Chrome Extension (recommended)
│   ├── manifest.json
│   ├── background.js
│   ├── offscreen.js        # AI processing
│   ├── popup/              # UI
│   └── icons/
├── extension/              # Server-based extension (legacy)
├── backend/                # Python FastAPI server (legacy)
└── CLAUDE.md               # Engineering guidelines

License

MIT