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Live CDP browser viewer in Open WebUI

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What it is

Each sandbox container runs Chromium with the Chrome DevTools Protocol exposed. Open WebUI’s Browser tab bridges CDP over a WebSocket, so the user sees exactly what the model is doing and can click through if needed. Not a screenshot relay — a shared, interactive browser.

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How the model uses it

The playwright-cli skill wraps Playwright with high-level helpers: navigate, fill forms, click, screenshot, extract content. The model chooses when to use Playwright vs. when to ask for human action.

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How the user uses it

Open the Browser tab in the chat’s side panel. You’re looking at the same Chromium the model is driving. You can:
  • Watch — every navigation, click, form fill happens live.
  • Take over — click, type, scroll. Useful for logins, 2FA codes, CAPTCHAs — the model never sees your raw credentials, only the resulting page state.
  • Leave the AI in charge — the model picks up from wherever you left the page.
Shared browser architecture

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Why a shared browser matters

Non-technical users get stuck at exactly the wrong moments: login walls, Cloudflare, banking 2FA. Shared browser means the user handles the human-in-the-loop step and the model continues — no need for a new skill every time a site adds a challenge.

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Endpoints (self-hosted)

GET  /browser/{chat_id}/status
GET  /browser/{chat_id}/json
WS   /browser/{chat_id}/devtools/page/{page_id}
On managed Yambr, Open WebUI uses a session-scoped token before opening the WebSocket — there is no public unauthenticated access.