TabChat turns your open tabs into a searchable knowledge base. It captures the content of your tabs, vectorizes it with FAISS, and lets you ask natural-language questions across everything you have open — no more digging back through 15 tabs to find that one paragraph. Open source, self-hostable, bring your own API key. 🔧 Built with LangChain.js + FAISS 🔐 Your data, your keys — no vendor lock-in 📖 Fully documented for contributors