NanoChat: On-device AI Assistant

Private local AI assistant & browser agent powered by Chrome Gemini Nano. Chat with webpages, summarize text & automate tasks.

NanoChat: Local AI Side Panel & Browser Agent is a browser extension for people who want a private, secure, and fully local AI assistant. Chat with any webpage, automate on-page actions with the AI Agent, instantly process selected text, and summarize articles without any data leaving your device. Whether you use NanoChat for learning, work, research, or productivity, NanoChat helps you summarize information faster and gives you direct control over your on-device AI workflows. You choose which actions to run and how to interact with your pages. Key features: - Chat with AI about any webpage or document you’re viewing - AI Browser Agent: let the AI click, type, scroll, and navigate pages for you - Smart context menu: select text to Translate, Summarize, Rewrite, Spellcheck, or Explain - Attach images or screenshots directly to your messages for multimodal input - Full conversation history with search to quickly retrieve past chats - Works seamlessly on any webpage in your active browser tab - Privacy-first architecture powered by Chrome's built-in Gemini Nano (Prompt API) - Zero configuration: install and start chatting locally with no API keys or setups Why users choose NanoChat: - 100% private: no cloud APIs, no data sent to external servers - Offline capability: runs completely on-device via your browser - Instant accessibility: convenient side-panel panel layout - Interactive web automation with experimental Agent mode - Completely free and open source with no registration or subscriptions Great for: - Users who value data privacy and want to keep conversations local - Professionals and students who need to read, summarize, or analyze web content - Developers and tech enthusiasts exploring Chrome's native local AI capabilities - Anyone looking for a distraction-free, local AI copilot inside the browser Important Requirements: To run NanoChat on-device, your system and browser must meet the following: - Chrome version 138 or higher - GPU: at least 4 GB VRAM - CPU/RAM: minimum 4 CPU cores and 16 GB RAM - Built-in AI flags enabled in Chrome (see GitHub repository for setup details) NanoChat is open source: https://github.com/cupcakedev/nanochat-extension