Tacit: Privacy-First AI Sidebar (OpenRouter, Local, OpenAI, Claude, Gemini)

Zero-tracking AI assistant. Chat with GPT, Claude, Gemini, or local models without subscription.

We have no servers. Tacit is a privacy-first AI sidebar. It lets you chat with the world's best models without handing over your data or paying subscription fees. No backend. No database. No tracking. Everything is encrypted and stored locally on your device. 🧠 Bring Your Own Intelligence • Cloud: Connect directly to OpenRouter (600+ models), Anthropic, OpenAI, or Google Gemini • Local: Run offline with Ollama or LM Studio • No middleman: Pay wholesale rates to providers, not monthly "Pro" subscriptions ⚡ Workflow Features • Alt+J (Option+J on Mac) opens the sidebar from any tab • Read This Page: summarize articles or analyze data instantly • Drag & drop images, PDFs, or code files for analysis • Web Search: enables the model to search the web if necessary to answer the question • Saved Prompts: bookmark and insert frequent prompts with / command • Fuzzy History Search: search across all sessions and messages 🔒 Zero-Knowledge Privacy • API keys and chat history encrypted locally • Open-source • No injected buttons polluting your websites 🚀 Getting Started • Install Tacit • Press Alt+J to open the sidebar • Add your API key in Settings (or connect a local model) • Start chatting Tacit is BYOK (Bring Your Own Key). You must provide your own API key or local model to generate responses. Source code: https://github.com/flecomet/tacit-sidebar