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 for free
👏 Join the community in Discord | X
❤️ Loving Nanobrowser? Give us a star 🌟 and help spread the word!
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.
Looking for a powerful AI web 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 and Gemini, with more LLM integrations coming soon!
- 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
-
Download
- Download the latest
nanobrowser.zipfile from the official Github release page.
- Download the latest
-
Install:
- Unzip
nanobrowser.zip. - Open
chrome://extensions/in Chrome - Enable
Developer mode(top right) - Click
Load unpacked(top left) - Select the unzipped
nanobrowserfolder.
- Unzip
-
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 use for different agents (Navigator, Planner, Validator)
If you prefer to build Nanobrowser yourself, follow these steps:
-
Prerequisites:
-
Clone the Repository:
git clone https://github.com/nanobrowser/nanobrowser.git cd nanobrowser -
Install Dependencies:
pnpm install
-
Build the Extension:
pnpm build
-
Load the Extension:
- The built extension will be in the
distdirectory - Follow the installation steps from the Quick Start section to load the extension into your browser
- The built extension will be in the
-
Development Mode (optional):
pnpm dev
Nanobrowser allows you to configure different LLM models for each agent to balance performance and cost. Here are recommended configurations:
- Planner & Validator: Claude 3.7 Sonnet
- Better reasoning and planning capabilities
- More reliable task validation
- Navigator: Claude 3.5 Haiku
- Efficient for web navigation tasks
- Good balance of performance and cost
- Planner & Validator: Claude Haiku or GPT-4o
- Reasonable performance at lower cost
- May require more iterations for complex tasks
- Navigator: Gemini 2.0 Flash or GPT-4o-mini
- Lightweight and cost-efficient
- Suitable for basic navigation tasks
Note: The cost-effective configuration may produce less stable outputs and require more iterations for complex tasks.
Tip: Feel free to experiment with your own model configurations! Found a great combination? Share it with the community in our Discord to help others optimize their setup.
Here are some powerful tasks you can accomplish with just a sentence:
-
News Summary:
"Go to TechCrunch and extract top 10 headlines from the last 24 hours"
-
GitHub Research:
"Look for the trending Python repositories on GitHub with most stars"
-
Shopping Research:
"Find a portable Bluetooth speaker on Amazon with a water-resistant design, under $50. It should have a minimum battery life of 10 hours"
We're actively developing Nanobrowser with exciting features on the horizon, welcome to join us!
- Expand LLM Support: Add integration with more large language model providers for AI agents
- Security Firewall: Implement protective measures to ensure safe browsing operations
- Memory Optimization: Reduce token usage while maintaining context awareness
- Session Replay: Efficiently replay historical tasks with minimal token consumption
- Specialized Agents: Develop purpose-built agents for complex domain-specific tasks
We need your help to make Nanobrowser even better! Contributions of all kinds are welcome:
- Share Prompts & Use Cases
- Join our Discord server.
- share how you're using Nanobrowser. Help us build a library of useful prompts and real-world use cases.
- Provide Feedback
- Try Nanobrowser and give us feedback on its performance or suggest improvements in our Discord server.
- Contribute Code
- Create an issue
- Fork the repository
- Open a pull request
We believe in the power of open source and community collaboration. Join us in building the future of web automation!
Join our growing community of developers and users:
- Discord - Chat with team and community
- Twitter - Follow for updates and announcements
- GitHub Discussions - Share ideas and ask questions
Nanobrowser builds on top of other awesome open-source projects:
Huge thanks to their creators and contributors!
This project is licensed under the Apache License 2.0 - see the LICENSE file for details.
Made with ❤️ by the Nanobrowser Team.
Like Nanobrowser? Give us a star 🌟 and join us in Discord | X