Claude in Chrome and the Claude Chrome extension, explained

People searching for a Claude Chrome extension mean one of three things. Some want Claude in Chrome, Anthropic’s official extension, which reads pages and acts on them for you. Some want Claude Code’s Chrome integration, which drives a browser from the terminal. The rest just want Claude’s models while they browse, with no agent involved. This guide takes them in that order.

What Claude in Chrome actually is

Claude in Chrome is Anthropic’s own extension, and it is not a chat sidebar. Give it a task and, in Anthropic’s words, Claude “reads the page, clicks, types, navigates, and fills forms” using the logins you already have. Think “pull the invoice details out of three vendor portals and build a sheet”, not “explain this paragraph”. The listing also covers saved sessions, multi-tab workflows and scheduled tasks.

The status has moved since this guide first ran. Anthropic’s product page now says Claude in Chrome “is now generally available”, while the help center still calls the Chrome side panel a beta. Since 12 August 2026 that side panel runs as a Claude Cowork session on Max and Team, rolling out to Pro, so conversations save to your history and your skills work in the browser.

What you need before installing

• A paid Claude plan. Anthropic’s help center says it is “available for all paid plans (Pro, Max, Team, and Enterprise)”. There is no free tier for the extension.
• Google Chrome itself. The same article says Claude in Chrome “is not supported on other Chromium-based web browsers or mobile devices”.
• An admin’s approval on Team or Enterprise.
• Broad permissions. The listing asks for fourteen, including the debugger, tabs and downloads.

Install from the Chrome Web Store, sign in, then grant permissions. Check that the publisher reads Anthropic. The store is full of extensions with Claude in the name.

Does Claude in Chrome work on Windows?

Anthropic does not answer this directly. Its requirements name a browser and rule out mobile devices, without ever mentioning an operating system, and we found no Anthropic statement either way. If Google Chrome runs on your machine, nothing in the stated requirements blocks Windows.

The confusion comes from neighboring products. Claude Code’s Chrome integration has its own Windows setup through the registry and is unsupported in the Windows Subsystem for Linux.

Claude in Chrome on Edge, Brave and Arc

For the consumer extension the answer is no. Anthropic’s help center says Claude in Chrome “is not supported on other Chromium-based web browsers or mobile devices”, which rules out Edge, Brave, Arc and Vivaldi.

Claude Code is more generous. Its docs say “Chrome integration works with Google Chrome and Microsoft Edge” and that Claude Code “also detects the extension and sets up the connection in other Chromium-based browsers, including Brave, Arc, Vivaldi, and Opera”. So Edge and Brave can run the extension when a developer tool drives it, but not the consumer agent.

Claude in Chrome vs Claude Code in Chrome

Same extension, different driver. Claude in Chrome is the consumer product, a side panel that works on the tab in front of you. Claude Code’s integration is for developers. You run claude --chrome in a terminal, Claude opens its own tabs, reads console output, network requests and DOM state. It needs the extension at version 1.0.36 or higher and a direct Anthropic plan.

Third-party “Claude” extensions on the Web Store

Search the store for Claude for Chrome and most results are not Anthropic’s. The official listing is titled Claude and published by Anthropic. The rest fall into two shapes. Enhancers add folders, search or export to claude.ai and sit inside your Claude session, so read their data practices. Resellers wrap model access in a monthly fee, so you pay their margin on top of the model’s own cost. When an extension offers Claude for free, the payment is usually your data.

The part to understand before you turn it on

An agent that reads pages can be steered by pages. Hidden text in a site or an email can carry instructions the model mistakes for yours, and a hijacked agent has your logged-in sessions. Anthropic names this itself. Its page warns that “Browser AI faces unique security risks, like prompt injection attacks”, says the protections “aren’t foolproof”, and tells you not to use it on sensitive workflows such as banking or health records.

The defenses are real but partial. You approve sites one at a time, and Anthropic blocks some categories by default, including financial services, banking, adult content and pirated content. Start where mistakes are cheap.

Claude Chrome extension not working? Check these first

Anthropic’s troubleshooting article covers most of it.

• Plan. Free accounts cannot use it. You need an active Pro, Max, Team or Enterprise subscription.
• Admin. On Team and Enterprise, an administrator has to enable the extension.
• Sign-in. Clear the cache and cookies for claude.ai, then sign out and back in.
• Profile. Use the Chrome profile the extension was installed in.
• Site permission. Check you granted the site, and remember the categories blocked by default.
• Other extensions. Disable anything else that acts on page content.

If you want Claude while you browse, without the agent part

A lot of these searches are not looking for delegation. They want to read a page and ask Claude about it, summarize a long article, or draft a reply. You do not need an agent for that, and a tool that can only read cannot be tricked into clicking.

That is the job our extension, UtilEngine, does. Press your shortcut on any page for Ask AI and Chat, with the page as context. Claude access comes through your own OpenRouter key, one key that covers Anthropic’s models and everyone else’s, priced per token with no subscription from us. The model list has 77 entries including 13 Claude models, switchable per conversation. Its AI tools are read only and show as chips in the answer, so it reads the page and searches the web, your tabs and your bookmarks. It never clicks, types or acts on a page, and it runs in Chrome, Brave and Edge.

The honest caveat runs both ways. UtilEngine is paid, $49 once plus your token costs, and it will not do your web chores. If delegation is what you came for, install Anthropic’s extension. The same split shows up with ChatGPT and Codex in Chrome.

Common questions

Is there a way to use the Claude Chrome extension for free?

Not the Claude browser extension. Anthropic’s troubleshooting article says free accounts cannot use it. The free route is claude.ai in a tab, and bring-your-own-key tools are the other, where you pay the provider directly.

Does Claude in Chrome work in Brave, Edge, or Arc?

Not as the consumer agent. Anthropic says it is unsupported outside Google Chrome. Claude Code’s integration is the exception, covering Edge and detecting the extension in Brave, Arc, Vivaldi and Opera.

Is Claude in Chrome the same as Claude Code in Chrome?

They share an extension and nothing else. Claude in Chrome is the side panel you talk to while browsing. Claude Code in Chrome is a terminal tool that opens tabs and tests what you built.

Which Claude model does the extension use?

Anthropic’s docs say all public Claude models are available in it, so the current generation is selectable rather than fixed.

Is Claude in Chrome safe to use?

Anthropic’s own page is the honest answer. It names prompt injection as a unique risk of browser AI, says the protections are not foolproof, and tells you to keep it off banking and health records. Use it where mistakes are cheap.

Do I still need Claude in Chrome if I have UtilEngine, or vice versa?

They barely overlap. UtilEngine gives you Claude and 64 other models for reading, asking and writing, paid per token, and never acts on pages. Claude in Chrome acts on pages and needs a subscription. Plenty of people run both.