nanochatInstall
Chrome 138+ · Gemini Nano · v0.1.6

AI that runs on your machine.

A side-panel AI assistant running entirely on Chrome's built-in Gemini Nano. No cloud, no keys, no tracking. Nothing leaves your machine.

Detecting Gemini Nano on this machine…
NanoChat side panel: prompts like Summarize this page, Translate to English, Explain like I'm 5.

real side-panel UI · not a render

01 · Page-aware chat01 / 05

It reads the page along with you.

NanoChat sees what's in front of you. Ask questions about an article, a doc page, a thread. Get summaries, translations, and insights in context, without ever copying a single word out.

NanoChat sidebar answering questions about the Chrome for Developers documentation page.
fig. 01chat-with-page on developer.chrome.com
  • Page-aware context
  • Side panel
  • On-device
02 · Smart context menu02 / 05

Translate. Summarize. Rewrite. Spellcheck. Explain.

Select any text. Five instant actions appear in a tiny floating toolbar. Everything runs on-device.

02.01

Translate

Pick a target language. Inline, on the page.

DEAa?Eleven days without a single landing. In 2007, Bar-tailed Godwit E7 crossed 13,000 kilometres of open Pacific in one non-stop flight, the longest endurance ever measured for a bird.

fig. 02the floating toolbar appears above any selection
02.02

Summarize

Compress the selection to a few bullets.

02.03

Rewrite

Reword for tone, register, or length.

02.04

Spellcheck

Catch typos and grammar without leaving the page.

02.05

Explain

Get the meaning, in plain language.

03 · Get unstuck03 / 05

Anything you didn't get, explained in place.

Highlight the part that tripped you up. Get a plain-language explanation right inline. Gnarly legalese, dense academic prose, a paragraph in a language you don't read. The selection never leaves your browser.

Comme la plupart des Grues, elle émet des chants caractéristiques grâce à la trachéeDEAa?Explain“trachée” — what it meansIn French, the windpipe. The tube that carries air to the lungs.Why the coil mattersCranes' tracheas loop several times inside the sternum. The coil acts as a resonance chamber, deepening their calls.Continue in Chat enroulée dans son sternum, qui agit comme une caisse de résonance. Ce son grave et puissant peut porter à plus de cinq kilomètres dans l'air clair des marais. Les vocalisations jouent un rôle central dans le maintien des liens du couple et dans les parades nuptiales, qui combinent sauts, courbettes et déploiements des ailes. En migration, les groupes se déplacent en formation de « V », tirant parti des courants ascendants pour économiser leur énergie sur des trajets pouvant dépasser plusieurs milliers de kilomètres.

fig. 03Explain, anchored to the selection
  • Any language
  • Any page
  • On-device
04 · Also included04 / 05

Quietly, in the background.

A handful of smaller utilities ship with the extension. No setup. They show up when you need them and stay out of the way otherwise.

  • 04.01

    Image input

    Attach a screenshot or a picture. Gemini Nano reads it on your machine.

  • 04.02

    Local history

    Every chat is saved on your disk and searchable from the side panel. Nothing syncs.

  • 04.03

    Agent mode

    NanoChat can click, type, scroll, and navigate pages on your behalf. You stay in the loop.

  • 04.04

    Zero config

    No keys, no accounts, no settings. Install the extension and start chatting.

05 · Honest about hardware05 / 05

Local AI isn't free.
Here's the bill.

Gemini Nano runs on your hardware, which means your hardware does the work. If your machine doesn't meet these specs, the model won't load, and we won't pretend otherwise. Verified against the Chrome Prompt API docs.

BrowserChrome 138 or later
OSWindows 10/11 · macOS 13+ · Linux · ChromeOS
GPUMore than 4 GB VRAM
Or, CPU path16 GB RAM · 4+ cores
Storage22 GB free on the Chrome-profile volume
NetworkOnline once, for the initial model download