NanoBrowser

Overview

NanoBrowser is a free, open-source Chrome/Edge browser extension that runs AI agents locally in your browser to automate web tasks like data extraction, form filling, multi-step workflows, and research by connecting to your own LLM API keys. It uses a multi-agent system with Planner, Navigator and Validator agents and offers an interactive side panel to control tasks conversationally.

Key features

• AI web automation
• Multi-agent workflows
• Interactive side panel
• Conversation history
• Flexible LLM support (OpenAI, Anthropic, Gemini, Ollama, custom providers)
• Privacy-focused local execution