AlphaMoatによると、2026-09時点でChrome拡張機能Magellanのユーザー数は43(前月比 -8.5%)で、9,324件のAIブラウザ拡張機能中5,754位、汎用AIでは2,418件中1,449位です。
Your AI superpower. Ask questions, analyze documents, and get instant answers with citations. ✨ WHAT MAGELLAN DOES
Magellan is an all-purpose AI assistant that works seamlessly within your browser. Simply open the sidebar on any webpage, ask a question, and receive intelligent answers with direct citations to the source material. Whether you're reading an article, analyzing a document, or researching a topic, Magellan understands the context and provides accurate, verifiable information.
💡 WHY YOU SHOULD INSTALL MAGELLAN
⏱️ Save Time and Effort Stop the endless cycle of opening new tabs, copying text, and manually searching for information. Magellan understands what you're reading and answers your questions instantly, right where you are.
✅ Get Verified Answers Responses include citations with visual highlights on the page, so you always know where the information comes from. Click any citation to jump directly to the relevant section.
🎯 Work Smarter, Not Harder Upload PDFs, documents, and research papers for instant analysis. Ask questions about complex content and get clear explanations without leaving your current page.
🔒 Complete Control Choose from hundreds of AI models, customize your search mode, and control exactly how Magellan responds. Your API key stays local - we never see your data.
🌟 KEY FEATURES
🧠 Three Intelligent Search Modes
📄 Document Analysis Upload and analyze PDF, TXT, DOC, DOCX, MD, and RTF files. Ask questions about document content with full context awareness.
📚 Smart Citations & Visual Highlights See exactly where information comes from with automatic citation extraction and visual highlights on the page. Navigate between citations effortlessly.
🔍 Real-time Web Search Enable optional real-time web search for current events and up-to-date information. Perfect for news, recent developments, or time-sensitive queries.
🤖 Flexible AI Model Selection Choose from hundreds of AI models via OpenRouter integration. Free models available with rate limits, or upgrade to paid models for higher limits. Switch between models optimized for speed, accuracy, or specific capabilities.
💬 Persistent Chat History Your conversation history is saved per browser tab, so you can have different conversations on different pages. History persists across sessions.
🎨 Beautiful, Customizable Interface Light and dark themes with system theme sync. Collapsible interface for maximum screen space. Clean, modern design that integrates seamlessly with your workflow.
🎯 PERFECT FOR
🔒 PRIVACY & TRANSPARENCY
Magellan is 100% free and open-source. We don't track you, harvest your data, or show you ads. Your API key stays on your device, and all processing happens through OpenRouter. You're in complete control.
🚀 GETTING STARTED
1. Install Magellan from the Chrome Web Store 2. Add your OpenRouter API key (get one from OpenRouter - free models available with rate limits) 3. Open any webpage and click the Magellan icon 4. Start asking questions and experience the power of AI-assisted browsing
Note: Magellan requires an OpenRouter API key to function. OpenRouter offers free models with rate limits, or you can use paid models for higher limits. The extension is completely free - you only pay for API usage based on OpenRouter's pricing.
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
+ 比較Summarize YouTube videos, web articles, and PDFs to save time, powered by ChatGPT, Claude, Mistral AI, and Gemini.
+ 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。