NanoChat: On-device AI Assistant

What it does

NanoChat is an open-source Chrome extension that runs AI entirely on-device using Chrome’s Prompt API. It gives you a sidepanel chat UI, page-aware context, and an interactive browser-agent mode. No API keys or cloud processing required.

A side-panel AI assistant powered by Chrome's built-in Gemini Nano. No cloud, no keys, no tracking — nothing leaves your machine. Free, open-source, MIT.

NanoChat is the private, local AI assistant powered by Google's built-in Gemini Nano. No API keys, no latency, no tracking. NanoChat sees what's in front of you. Ask questions about an article, a doc page, or a thread — summaries and translations without ever copying a word out. Select any text. Five instant actions appear in a tiny floating toolbar. Everything runs on-device, instantly. Translate DE Aa ? Eleven days without a single landing . In 2007, Bar-tailed Godwit E7 crossed 13,000 kilometres of open Pacific in one non-stop flight. Highlight the part that tripped you up. Get a plain-language explanation right inline. Gnarly legalese, dense academic prose, or paragraphs in languages…from chat.cupcakedev.com

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