nanobrowser/nanobrowser

What it solves

Nanobrowser is an open-source AI web automation tool designed to provide a free, privacy-focused alternative to expensive proprietary browser agents. It allows users to automate repetitive web tasks and perform complex research across multiple websites using their own LLM API keys.

How it works

It operates as a Chrome or Edge extension that runs locally in the browser. The system uses a multi-agent architecture consisting of a Planner (which handles reasoning and high-level strategy) and a Navigator (which executes the actual web navigation). Users can connect various LLM providers (such as OpenAI, Anthropic, Gemini, Ollama, and Groq) and can assign different models to each agent to balance cost and performance.

Who it’s for

It is intended for users who want to automate web workflows, conduct online research, and maintain complete control over their credentials and data without paying monthly subscription fees.

Highlights

• Multi-agent System: Collaborative AI agents that can self-correct and adjust their approach in real-time.
• Flexible LLM Support: Compatible with a wide range of providers, including local models via Ollama.
• Privacy-Focused: Runs locally in the browser, ensuring credentials are not shared with cloud services.
• LMM-Agnostic: Allows different models to be assigned to the Planner and Navigator roles for optimization.