Let AI agents drive your real Chrome, over your tailnet.

Three steps, and your agent has a browser.

1. Start the relay

   Run it once, on any machine in your tailnet. It binds to the Tailscale IP and prints what to paste where.

   $ npx tailbrowser relay

2. Load the extension

   On the Chrome machine, load extension/ unpacked, click Find local relay or paste ws://mac-mini:8787, and share a tab.

3. Run a snippet

   From any tailnet machine. The relay is found automatically and the session stays with you.

   $ npx tailbrowser -e 'await page.goto("https://example.com"); return await page.title()'
   "Example Domain"

   Or give it to Claude Code, Cursor, or any MCP client:

   { "mcpServers": { "tailbrowser": { "command": "npx", "args": ["-y", "tailbrowser@latest", "--mcp"] } } }

You choose what agents can see.

Tabs outside the scope do not exist for the agent. Asking for one returns a TB_SCOPE error. Narrow the scope and tabs detach at once.

Private by design.

• Tailnet onlyThe relay binds to your Tailscale IP. Nothing off the tailnet can connect.
• Optional tokenTokenless on a personal tailnet; add --token when you share one.
• Always visibleChrome shows its debugging banner on every shared tab. Dismiss it to unshare.
• One-click revokeDrops the relay link and every attachment, and stays off after a restart.