
Browser automation
Nanobrowser
A Chrome extension where an AI actually drives the browser for you
★ 14k
November 2025
Apache-2.0
Browser automation
What it does
Install it from the Chrome Web Store and an AI agent operates the page directly - browsing, reading and filling things in - as a free alternative to paid operator-style services, with a multi-agent setup and your own choice of LLM. Because it acts inside your logged-in browser, be careful on pages where money moves or data can be deleted. You supply the API key and pay for the calls.
Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.
Screenshots & visuals

Before you start
- Setup difficultySome setup needed
- Command lineNot required
- API keyRequired
- Sends data onlineYes
Judged automatically from the project's own metadata. Always confirm on the official page.
Nanobrowser FAQ
- Is Nanobrowser free?
- Nanobrowser itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.
- Do I need to install anything or write code to use Nanobrowser?
- You install it like a normal desktop app. No command line involved.
- Does Nanobrowser work on a phone?
- No. It needs a computer.
- Can I use Nanobrowser commercially?
- The licence is Apache-2.0, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.