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WebBrain

The open-source alternative to Claude's browser plugin. AI-powered browser extension for Chrome & Firefox.

At a glance

WebBrain is a agents tool: The open-source alternative to Claude's browser plugin. AI-powered browser extension for Chrome & Firefox.

  • Pricing: Paid
  • Category: Agents
  • API: yes
  • Open source: yes
  • Status: Online · last verified
  • Page updated:
Preview of WebBrain

What is WebBrain?

WebBrain is a free, open-source alternative to Claude's browser plugin. AI browser agent for Chrome, Firefox, and Edge — read pages, extract data, automate tasks. Works with llama.cpp, OpenAI, Claude, OpenRouter. Multilingual UI, token-conscious screenshots. GPL-3.0-or-later licensed.

Description: extracted from the tool's own website · reviewed by admin

Frequently asked questions about WebBrain

What is WebBrain?

WebBrain is a agents tool: The open-source alternative to Claude's browser plugin. AI-powered browser extension for Chrome & Firefox.

Is WebBrain free?

No. WebBrain is a paid tool; check the website for current prices.

Does WebBrain have an API?

Yes. WebBrain offers an API or developer documentation for integrations.

Is WebBrain open source?

Yes. The source code of WebBrain is publicly available.

Is WebBrain still online?

Yes. anyai.fyi last verified webbrain.one on 2026-10-13, and it was online.

What are alternatives to WebBrain?

Alternatives to WebBrain are other Agents tools with a similar purpose. The list below is sorted by similarity in meaning.

What are alternatives to WebBrain?