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WebBrain is a free, open-source browser agent for Chromium and Firefox that understands pages, extracts information, and performs actions from a sidebar. It supports local models through llama.cpp and user-provided keys for OpenAI, Claude, OpenRouter, and compatible APIs; local mode keeps data on device.

WebBrain homepage screenshot

Features

  • Browser sidebar agent
  • Page reading and data extraction
  • Local-model support
  • Bring-your-own API keys

Use Cases

  • Summarize current pages
  • Extract structured data
  • Automate repetitive browser tasks
  • Run private local Q&A

FAQ

WebBrain is a free, open-source browser agent for Chromium and Firefox that understands pages, extracts information, and performs actions from a sidebar. It supports local models through llama.cpp and user-provided keys for OpenAI, Claude, OpenRouter, and compatible APIs; local mode keeps data on device. Core capabilities include: Browser sidebar agent, Page reading and data extraction, Local-model support.

Common scenarios include: Summarize current pages, Extract structured data, Automate repetitive browser tasks.

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