Web Butler

Your AI subscription
on every page.

A web extension to drive your browser through your existing AI subscriptions.

Add to Chrome

How it works

  1. 01

    Install the extension

    Chrome, or anything Chromium.

  2. 02

    Sign in with your AI

    ChatGPT, Claude, or Grok. The plan you already pay for does the thinking; there is no Web Butler subscription.

  3. 03

    Ask on any page

    Press ⌘E and say the word. Answers about the page, errands in your tabs, alterations that hold, and full reports.

Install

From the Chrome Web Store

One click, updates handled, nothing to configure.

Chrome Web Store

By your AI agent

Give Claude Code, Codex, or Cursor one prompt. The agent builds the extension and installs it over Chrome's DevTools protocol; you sign in when it's done.

The prompt points at butler.swerdlow.dev/install.md, a machine-followable install guide.

or open it in

Build it yourself

The DIY route, for the curious. Open source front to back: clone, build, load unpacked. The hosted server does the rest, no keys needed. 

git clone https://github.com/theswerd/web-butler

Build with npm run build:prod, load the output at chrome://extensions, flip on Allow User Scripts.

Read install.md Full setup guide

Questions

Does this follow the ChatGPT/Grok/Claude Terms of Service?

Maybe, probably not. I never checked.

Is it private?

Not really. Other users cannot see what you're doing but we store all tasks/chats in a database. We don't anonymize data at all.

How much does it cost?

Nothing. You bring the AI subscription you already pay for; the butler just puts it to work.

Is it open source?

Fully. The whole service is at theswerd/web-butler.