Submit

Browse every extension by category.

All categories

Start from the job you need done.

All use cases

Starter kits for the way you work.

All professions

Extensions that upgrade the sites you already use.

All websites

Side-by-side verdicts and honest alternatives.

All comparisons

Free, single-page tools. No sign-up, most run right in your browser.

Chrome & browser
Privacy tests
Developer utilities
Images & media
Website inspector
Device checks
AI & productivity
All free tools

How-tos, safety explainers and data studies.

All guides
Submit an extension

↑↓ move · ↵ open · Tab filter · Esc close

Merlin AI Chrome extension

Merlin AI adds an AI assistant to your browser that can chat, help with writing, and research alongside whatever page you're on. It's best for people who want AI help without switching tabs to a separate chat app. The catch: as an AI browser agent, it needs broad page access to read and act on the content you're viewing.

  • PriceFreemium
  • CategoryAI
  • Works inChrome, Edge, Brave (desktop)
  • ✓AI-powered

Last checked against the Chrome Web Store listing · Independent, not affiliated with Google

Add to Chrome See alternatives

Pros

  • works as an AI assistant across whatever page you're on
  • combines chat, writing help, and research in one tool
  • accessible directly from the browser toolbar
  • removes the need to switch to a separate AI chat tab

Cons

  • needs access to page content to act as a browser agent, which is a broader permission than single-purpose extensions
  • as with any AI assistant, responses should be checked rather than trusted blindly

Best for

  • getting AI chat and writing help without leaving the current page
  • researching topics while browsing, with AI summarizing or answering questions
  • people who want one AI tool that works across many sites
  • quick access to an AI assistant from the toolbar

Skip it if

  • users who want a narrowly scoped tool rather than a broad browser agent
  • people uncomfortable granting an AI extension access to page content

Key features

  • AI chat accessible from any webpage
  • writing assistance while browsing
  • research help that works alongside the page you're viewing
  • browser-agent design built by Merlin

What Merlin AI does

Merlin AI is described in its listing as an AI-powered browser agent that provides chat, writing, and research help directly on any webpage. Rather than switching to a separate AI chat tab, you open Merlin AI from the toolbar and it works alongside the page you're currently viewing.

Merlin AI free vs paid

Merlin AI installs for free from the Chrome Web Store. Its listing focuses on describing the chat, writing, and research capabilities of the extension itself; check the current store page or Merlin's own site for the latest details on any paid plans.

Is Merlin AI safe?

Because it acts as a browser agent, Merlin AI needs permission to read and interact with the content of pages you visit so it can chat, write, and research alongside what's on screen. Review the permissions Chrome shows during install, and treat its AI-generated answers as a starting point rather than a verified fact.

Featured in

Guides featuring Merlin AI

Merlin AI: FAQs

Is Merlin AI free?

Yes, the extension installs for free from the Chrome Web Store.

Is Merlin AI safe to use?

As a browser agent, it needs access to page content to chat, write, and research alongside what you're viewing. Review its permissions before installing.

How do I use the Merlin AI extension?

Install it, pin the icon, and open it on any page to start chatting, drafting text, or researching a topic.

What can Merlin AI do on a webpage?

Its listing describes chat, writing assistance, and research help that work alongside whatever page you're currently on.

Merlin AI vs ChatGPT: what's the difference?

ChatGPT is a standalone chat app, while Merlin AI is built as a browser extension that works directly on the page you're viewing.

What are alternatives to Merlin AI?

ChatGPT's own browser extension and other AI browser assistants are common alternatives with different feature sets.

Can Merlin AI help with writing?

Yes, writing assistance is one of the core capabilities described in its listing.

Does Merlin AI require an account?

Check the extension's setup flow after installing, as AI browser agents typically require signing in to use chat and research features.

Is Merlin AI's output always accurate?

As with any AI assistant, treat its answers as a starting point and verify important facts independently.

Does Merlin AI work on every website?

Its listing describes it as working on any webpage, though the extension's own permissions and settings determine where it's active.