nanobrowser
nanobrowser/nanobrowser
Open-source Chrome extension for AI-powered web automation with multi-agent workflows.
Overview
Nanobrowser is a browser extension that enables users to automate and interact with the web via an AI interface. It allows running multi-agent workflows using any LLM API key, offering privacy-focused operations, multiple LLM support, and interactive side panel chat capabilities.
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Install
npm install nanobrowserREADME
🌐 Nanobrowser
Nanobrowser is an open-source AI web automation tool that runs in your browser. A free alternative to OpenAI Operator with flexible LLM options and multi-agent system.
⬇️ Get Nanobrowser from Chrome Web Store for free
👏 Join the community in Discord | X
🌟 Loving Nanobrowser? Give us a star and help spread the word!
❤️ Support the project by sponsoring us - every contribution helps keep Nanobrowser free and open source!
Nanobrowser's multi-agent system analyzing HuggingFace in real-time, with the Planner intelligently self-correcting when encountering obstacles and dynamically instructing the Navigator to adjust its approach—all running locally in your browser.
🔥Why Nanobrowser?
Looking for a powerful AI browser agent without the $200/month price tag of OpenAI Operator? Nanobrowser , as a chrome extension, delivers premium web automation capabilities while keeping you in complete control:
- 100% Free - No subscription fees or hidden costs. Just install and use your own API keys, and you only pay what you use with your own API keys.
- Privacy-Focused - Everything runs in your local browser. Your credentials stay with you, never shared with any cloud service.
- Flexible LLM Options - Connect to your preferred LLM providers with the freedom to choose different models for different agents.
- Fully Open Source - Complete transparency in how your browser is automated. No black boxes or hidden processes.
Note: We currently support OpenAI, Anthropic, Gemini, Ollama, Groq, Cerebras, Llama and custom OpenAI-Compatible providers, more providers will be supported.
📊 Key Features
- Multi-agent System: Specialized AI agents collaborate to accomplish complex web workflows
- Interactive Side Panel: Intuitive chat interface with real-time status updates
- Task Automation: Seamlessly automate repetitive web automation tasks across websites
- Follow-up Questions: Ask contextual follow-up questions about completed tasks
- Conversation History: Easily access and manage your AI agent interaction history
- Multiple LLM Support: Connect your preferred LLM providers and assign different models to different agents
🌐 Browser Support
Officially Supported:
- Chrome - Full support with all features
- Edge - Full support with all features
Not Supported:
- Firefox, Safari, and other Chromium variants (Opera, Arc, etc.)
Note: While Nanobrowser may function on other Chromium-based browsers, we recommend using Chrome or Edge for the best experience and guaranteed compatibility.
🚀 Quick Start
- Install from Chrome Web Store (Stable Version):
- Visit the Nanobrowser Chrome Web Store page
- Click "Add to Chrome" button
- Confirm the installation when prompted
Important Note: For latest features, install from "Manually Install Latest Version" below, as Chrome Web Store version may be delayed due to review process.
- Configure Agent Models:
- Click the Nanobrowser icon in your toolbar to open the sidebar
- Click the
Settingsicon (top right) - Add your LLM API keys
- Choose which model to us