WebBrain
WebBrain is The open-source alternative to Claude's browser plugin. AI-powered browser extension for Chrome & Firefox. Read, understand, and automate any web page. Multi-provider LLM support. Multilingual UI. Free forever.. It is ranked #5063 on the AI Radar, in AI agents, first seen 36 days ago and shared in 1 post (2.4k views).
WebBrain — Free Open-Source AI Browser Agent for Chrome, Firefox & Edge prefers-color- scheme > dark fallback. Wrapped in try/catch because localStorage can throw in private-mode Safari and some sandboxed iframes. --> language list in the footer. --> The Open-Source AI Browser Agent WebBrain is a free, open-source browser extension that brings AI agent capabilities to your browser. Read pages, extract data, and automate web tasks — powered by your choice of LLM. The self-hostable alternative to proprietary browser AI plugins. Install Extension View on GitHub Featured on Chrome Web Store Product Hunt MarkTechPost Thousands of users across…
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WebBrain in numbers
- Rank on the AI Radar: #5063 of 10402
- Shared in 1 post by 1 account: @support_huihui
- 2.4k views on those posts
- First seen 36 days ago, last shared 36 days ago
- Pricing seen by AGK Intelligence: free
- Market: AI agents
FAQ
What is WebBrain?
The open-source alternative to Claude's browser plugin. AI-powered browser extension for Chrome & Firefox. Read, understand, and automate any web page. Multi-provider LLM support. Multilingual UI. Free forever. It was first shared on X 36 days ago and is ranked #5063 on the AI Radar.
Is WebBrain free?
Yes, it is free to use.
Who shared WebBrain?
1 account on X, including @support_huihui, in 1 post totalling 2.4k views.
Every post is read and classified by AGK Intelligence: what it is, which market it belongs to, and whether the link is a real tool. 65.6k posts from 5k X accounts over the last 14 days, 10.4k tools, 19 markets. New posts are collected several times an hour and the full ranking is recomputed every hour — last update 2026-11-06 15:10 UTC. Full method.