AlphaMoatによると、2026-09時点でChrome拡張機能Browser Brain AI Agentのユーザー数は59(前月比 +110.7%)、評価は5(1件のレビュー)で、9,324件のAIブラウザ拡張機能中5,149位、汎用AIでは2,418件中1,277位です。
A true autonomous AI browser agent—bring your own API key (no subscription) or run local Ollama/LM Studio models for private AI. ** Browser Brain — An AI That Actually Works Inside Your Browser **
Most AI browser extensions are just chat boxes bolted onto the side of your screen. Browser Brain is different.
Browser Brain is an autonomous AI agent that lives inside your browser, giving it the ability to see your tabs, understand the page you’re on, recall what you’ve already browsed, and help you complete real web tasks—not just talk about them.
Use it to understand the page you’re on, automate multi-step web tasks, and instantly recall information from your browsing context (tabs, history, bookmarks).
No subscriptions, no lock-in: connect your own OpenRouter key (or use any OpenAI compatible provider) for pay-as-you-go access to a wide range of free and premium models, or run Ollama, LM Studio or Llama.cpp locally for complete privacy and zero per-request cost. Use it across any Chromium-based browser (Chrome, Edge, Brave, Opera, etc.)—no forced “AI browser” ecosystem. Freely choose from many AI models and switch anytime based on cost, speed, or quality.
** True browser agent capabilities (beyond just AI chat) **
1.) Access and reason over open tabs. Chat with and ask questions about the current website to get context-aware help.
2.) Find lost pages you once visited (history recall) and bookmarks you forgot where you put long ago.
3.) Interact with browser content and guide or perform multi-step actions.
4.) Upload documents, images, screenshots, data or code files for instant analysis and summarization. The agent can also "see" your browser: snap screenshots of your current view for context, or analyze visual elements on the page.
5.) Export & backups: Save chats to a file for records, sharing, or documentation.
** Privacy, Control & Transparency ** Local-first by design: When you choose a local LLM through Ollama, LM Studio or Llama.cpp your prompts and processing for local models stay entirely on your device—ensuring complete privacy with no data leaving your machine.
ChatGPT, DeepSeek, Gemini, Claude, Grok all in one AI sidebar, for AI search, read, and write.
+ 比較Change default search engine to ChatGPT search.
+ 比較One stop AI Assistant with GPT, Claude, Gemini: Chat, Write, Translate, Search, Summarize, image generator, video generation
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+ 比較データ月:2026-09 · ユーザー数と評価はChromeウェブストアの公開データを月単位で集計したものです。詳しくはデータの方法論をご覧ください。