ContextBridge – Local RAG Companion

Store, search, and chat with web page content locally. AI chat (BYOK), full-text search, markdown export, and optional RAG endpoint.

ContextBridge extracts clean, structured content from any web page and stores it locally in your browser using IndexedDB. No backend required — works offline out of the box. Key Features: • AI Chat — Ask questions about any indexed page using Claude, OpenAI, or Gemini (bring your own API key) • Full-Text Search — Instantly find any page you've saved by keyword • Markdown Export — Export pages as .md files or ZIP bundles for Obsidian/notes • Smart Extraction — Site-adaptive parsers for GitHub, Stack Overflow, MDN, arXiv, and more • Code Block Preservation — Language detection and fenced syntax maintained • Auto-Tagging — Detects technologies (Python, Rust, React, SQL, etc.) • Storage Mode — Choose local-only, endpoint-only, or both simultaneously • Optional RAG Endpoint — Send content to your own vector store for advanced retrieval Privacy: • All data stored on-device only • No analytics, no telemetry, no tracking • AI chat calls go directly to your chosen provider — no intermediary • API keys stored locally, never synced How It Works: 1. Open any technical page (docs, GitHub, blog, tutorial) 2. Press Ctrl+Shift+E or click the sidebar button 3. Content is extracted, chunked, and stored locally 4. Search it, chat with it, or export it anytime Requires: Your own API key for AI chat (Claude, OpenAI, or Gemini). The extension itself is completely free.