Nanobrowser
Open-source Chrome extension agent that automates web tasks in your own browser.
Updated
✨ Try AgentScout's free AI image generator →Good for: browsing the web, automating workflows, open-source agents
Use cases
About Nanobrowser
Nanobrowser is listed in our browser/computer use category and is aimed at people who want a ready-to-use product. Open-source Chrome extension agent that automates web tasks in your own browser. Pricing, as the maker states it: Open source. Maturity: Mature. We last checked the official link on 2026-10-16.
What is Nanobrowser?
Nanobrowser is an open-source AI agent that works in your own browser as a Chrome extension.
You give it a task in the side panel; it reads pages, clicks, types and moves between tabs, and asks before it submits.
Sources: the official README and our directory listing, checked 2026-10-18. Official site: nanobrowser.ai.
Who is Nanobrowser for?
People who want an open-source agent to automate web tasks in Chrome.
Nanobrowser at a glance
- Open source: Yes (Apache License 2.0)
- GitHub: nanobrowser/nanobrowser · 14,141 stars (as of Oct 21, 2026)
Key features
- Chrome extension
- Side-panel tasks
- Asks before submitting
Nanobrowser FAQ
What is Nanobrowser?
Nanobrowser is an open-source AI agent that works in your own browser as a Chrome extension.
Who is Nanobrowser for?
People who want an open-source agent to automate web tasks in Chrome.
Is Nanobrowser free?
Nanobrowser's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Is Nanobrowser open source?
Yes. Nanobrowser is released under the Apache License 2.0, according to its GitHub repository.
What are alternatives to Nanobrowser?
Similar tools include Browser Use, Browser Use Web UI, Agent-E, HARPA AI, Minion AI and Kadoa.
Nanobrowser ratings and reviews
Be the first to rate Nanobrowser: tap 1 to 5 stars below. A written review is optional.
Nanobrowser alternatives
Other browser/computer use tools in our directory. See all browser/computer use tools →
Browser Use
Library that lets AI agents control a web browser.
Browser Use Web UI
Gradio web interface for the Browser Use agent that runs AI browser automation tasks with many LLM providers and your own browser.
Agent-E
Emergence AI's web agent that automates tasks in the browser through hierarchical planning.
HARPA AI
Chrome extension browser agent that combines models like GPT, Claude and Gemini to automate web tasks, searching, writing and summarizing.
Minion AI
Browser agent that completes web tasks for you.
Kadoa
AI agents that build, monitor and maintain web data pipelines producing verified datasets for investors.
Popular searches with this tool
🏆 Ranked in: Lightpanda alternatives · UI-TARS-desktop alternatives
🔁 Listed in: Lightpanda alternatives · UI-TARS-desktop alternatives
🧭 Task guides: AI browser automation tools
Badge for makers
Built Nanobrowser? Add this badge to your README or site. It links back to this page. About badges
