What an AI browser does, and do you need one?

An AI browser is a web browser with an AI assistant built into it: you ask it about the pages you have open, and some can act on them, clicking and typing for you. This guide explains what an AI browser does, goes through the main ones from their makers’ own pages, and covers the other route, adding an assistant to the browser you already use as an extension. Every product fact here is from its maker’s page, read on 28 October 2026.

The makers describe much the same three things, in different words:

• An assistant beside the page. Ask a question, and it answers from what you have open.
• Reading across your tabs. Compare several pages, or pull the point out of each.
• Acting for you. Some can click, type and move between pages to carry out a task you describe. Makers call it an agent, or name the feature, such as auto browse in Chrome.

The first two read. The third acts, in a browser where you’re signed in to your accounts, so every maker that offers it pairs it with safety advice of its own (see the FAQ).

In no particular order, here is what each maker says about its own. Two of them are browsers you may already have: Edge and Chrome now have assistants built in too.

• Comet, from Perplexity. Perplexity describes it as an AI browser that acts as your personal assistant, available for Mac, Windows, iOS and Android. It released Comet to everyone for free in October 2025, and its Max plan has the highest weekly limit on browser agent queries.
• Dia, from The Browser Company. Available for macOS and Windows. Its plans page lists three: Better Browser, which is free, and two paid ones, Better Answers and Better Days.
• Microsoft Edge, with Copilot. On 13 May 2026 Microsoft said it was retiring Copilot Mode. Copilot in Edge, in Microsoft’s words, can reason across your open tabs with your permission. Its agent, Browse with Copilot, clicks, types and moves between tabs, on Edge for desktop, for Microsoft 365 Premium subscribers in the US, with more markets to follow.
• Google Chrome, with Gemini. Google describes Gemini in Chrome as an AI assistant right in your browser tab, on a Mac, Windows computer or Chromebook Plus, in a signed-in Chrome profile. Its agent, auto browse, is for Google AI Pro and Ultra subscribers. It started in the US on desktop, and on 7 October 2026 Google brought it to India, on desktop and Android.

Switching browsers is a bigger change than it sounds: your bookmarks, saved passwords, signed-in sessions and other extensions are all in the browser you use now. An AI browser gives you the assistant everywhere, as part of the browser itself. An extension adds an assistant to the browser you have, and leaves the rest where it is.

So the question is less which is better than how much of your browser you want to change. If you’re happy where you are, an extension, or the assistant your browser now has built in, is the smaller step. If you want a browser designed around the assistant from the start, that’s what the AI browsers are for.

Lists of the best AI Chrome extensions run long, and the same advice applies to all of them: read what each maker says it does and which sites it can see before you add it. The one we have a full guide to is Anthropic’s, which it describes as “a browser extension that allows Claude to read, click, and navigate websites alongside you”. Our guide to the Claude Chrome extension covers what it’s for, how to set it up and how to use it safely. If you’d rather make an extension of your own, our guides to picking a Chrome extension builder and making a Chrome extension start there.

An AI browser agent is at its best on a job that’s different each time: comparing what’s in your tabs, finding your way around a site, filling in a form once. Some browser work is the same every time, though: the same export every Monday, the same steps for each record in a list. An agent works the steps out afresh on every run, so each run can come out a little differently. A tool that builds the steps once can replay them, the same way each time.

Tabless is a browser extension that builds what you ask for from the sites you allow; nothing is typed or submitted without your OK. It isn’t open yet. We’re building it for the busywork you repeat across the sites you already use, in the browser you already have.

It’s designed to build the steps once and replay them on your OK: a row button you click, or a batch whose rows and text you reviewed and confirmed, run one row at a time. It’s designed to read only the sites you allow, asking before each one, and you sign in to Tabless with a Wix account.

Each maker gives its own advice, and it’s worth reading before you let one act for you. Perplexity says Comet pauses for your confirmation before the actions that really matter, such as sending an email or making account changes, whether or not its systems detect anything suspicious. Microsoft asks you to monitor Browse with Copilot’s activity closely, and says you can interrupt or take control at any time. Google says you’re responsible for what Gemini does during an auto browse task, including mistakes and unexpected results like purchases. Anthropic’s advice for Claude in Chrome is to review its proposed actions before you approve them, especially on new websites.

No. Edge and Chrome have assistants built in now, and extensions add one to the browser you have. An AI browser is a choice, not a requirement.

No. Tabless isn't a browser: it's a browser extension that builds what you ask for from the sites you allow, and it isn't open yet. Join the waitlist, and we'll let you know when you can try Tabless.