Muchallms Extension

Muchallms is a Chromium extension that manages multiple LLM web UIs (ChatGPT, Claude, Gemini, Grok, Perplexity) in a coordinated grid with a single controller window for broadcasting prompts.

It does not require any API keys. It works with your existing free accounts on the supported LLM chat sites.

Demo: https://www.youtube.com/watch?v=ZUj9dPOTYFs

Features

• Detect and organize LLM popup windows into a grid
• Controller window to broadcast prompts to open LLMs
• Conversation history with per-LLM links (stored locally)
• Runs entirely in your browser (no backend)

Install (development)

1. Open chrome://extensions (or the extensions page in Arc/Brave).
2. Enable Developer mode.
3. Click "Load unpacked" and select muchallms/extension.
4. Click the extension icon to open the controller.

Usage

• New chat: use the edit icon in the header.
• Send prompt: click the broadcast icon or press Ctrl/Cmd+Enter.
• History: open the menu in the header to review past conversations.

Development

• Extension source: src/
  • background.js: window management + messaging
  • content.js: DOM adapters for providers
  • control.html/.css/.js: controller UI

Privacy

All data stays in your local browser storage. No analytics or external servers.

License

MIT. See LICENSE.