SnapSmart – Full-Page Capture + On-device AI (Gemini Nano)

SnapSmart is a Chrome extension that captures flawless full-page screenshots and runs on-device AI to summarize, rewrite, and write text — all locally in Chrome, no servers.

Features

• Pixel-perfect full-page capture with overlap stitching & freeze
• Manual Stitch for infinite scrolls
• PDF Capture Mode for direct .pdf links
• On-device AI (Gemini Nano):
  • Summarize (Summarizer API)
  • Rewrite (Rewriter API)
  • Write (Writer API)
  • Multimodal fallback (LanguageModel) to summarize the last capture image
• Privacy-first: no network calls for AI

Install (for judges)

1. Open chrome://extensions → enable Developer mode.
2. Click Load unpacked and select this folder.

Quick test

• Open a long page → Capture Full Page → preview + download.
• Click Summarize to see on-device summary of visible text.
• Paste text → Rewrite. Enter a short prompt → Write.
• Manual Stitch: Start → scroll → Add Slice → Finish.
• Direct .pdf URL → PDF Capture Mode.

Files

• manifest.json, popup.html, popup.js, content.js, pdf_capture.html, styles.css
• ai/ai_adapter.js

Permissions

activeTab, scripting, downloads, tabs

License

MIT