# NanoChat
> A side-panel AI assistant for Chrome that runs entirely on-device using the built-in Gemini Nano model. No cloud, no API keys, no tracking — nothing leaves your machine.

## What it is
- NanoChat is a free, open-source (MIT) Chrome extension by cupcakedev. It adds a side-panel AI assistant plus a selection toolbar that translates, summarizes, rewrites, spellchecks, and explains text. Everything is processed locally through Chrome's built-in Prompt API (Gemini Nano).

## Features
- Page-aware chat: ask questions about the current page from a side panel.
- Selection toolbar: Translate, Summarize, Rewrite, Spellcheck, Explain — inline, on the page.
- Image input: attach a screenshot or picture; Gemini Nano reads it on-device.
- Local history: every chat is saved on disk and searchable; nothing syncs.
- Agent mode: NanoChat can click, type, scroll, and navigate on your behalf.
- Zero config: no keys, no accounts, no settings.

## Requirements
- Chrome 138+ on Windows 10/11, macOS 13+, Linux, or ChromeOS.
- GPU with more than 4 GB VRAM, or a CPU path with 16 GB RAM and 4+ cores.
- ~22 GB free storage on the Chrome-profile volume for the model.
- Online once, for the initial model download.

## FAQ
- Does my data leave my machine? No — everything runs on Chrome's built-in Gemini Nano; prompts, pages, and chat history stay local.
- Does it work offline? Yes, after a one-time model download.
- Is it free? Yes, free and open-source under the MIT license; no accounts or API keys.
- Which browsers? Chrome 138+ on Windows, macOS, Linux, and ChromeOS.

## Links
- Install: https://chromewebstore.google.com/detail/nanochat-local-ai-assista/blpleeefgeopjgdgjelpldcabhipkjbd
- Source: https://github.com/cupcakedev/nanochat-extension
- Built by: https://cupcakedev.com