LLM Broadcaster

Type one prompt once and broadcast it to multiple AI chat services from a local browser extension.

LLM Broadcaster turns a dedicated browser profile into a local multi-model AI workspace. Type one prompt once, choose the services you want, and broadcast that prompt into multiple already-open AI chat tabs. It is built for people who compare outputs across models for writing, research, coding, debugging, planning, and creative work. The workflow stays inside your browser: • No API keys • No backend • No external prompt routing • No analytics or telemetry • No hidden tracking Features: • Broadcast one prompt to multiple AI services • Reuse existing AI tabs instead of opening duplicates • Open missing tabs automatically • Use built-in groups like Code, Research, and Creative • Save custom service groups • Save reusable prompt presets • Keep local prompt history • Add an optional context prefix to every broadcast • Reset AI tabs to a fresh chat with one click • Use the popup or persistent side panel LLM Broadcaster does not replace the AI services themselves. You still use your own logged-in browser sessions. The extension simply helps you send the same prompt to the services you choose without repetitive copy-paste. Recommended setup: Use a dedicated Chrome or Brave profile for AI work, stay logged in to the services you use, and keep the extension pinned for fast access.