Best Free AI Browsers in 2026
Key factsComet, Edge Copilot and Brave Leo offer free AI browsing; Dia's AI now costs $20/month
- Perplexity Comet, Microsoft Edge with Copilot and Brave Leo all include a free AI assistant, while Dia's AI now requires a subscription.
- ChatGPT Atlas stopped working on August 9, 2026, with OpenAI moving its agent features into the ChatGPT desktop app.
- Dia's free plan has no AI features for new Mac users as of September 2026; AI chat starts at $20 a month with Better Answers.
- Brave Leo requires no account, builds no profile, and does not retain conversations, unlike the other AI browsers.
- Agentic browsing lets an AI act on logged-in sessions, which creates a real risk from prompt injection on malicious pages.
All four browsers here are free to install, but only three give you a working AI assistant without paying: Perplexity Comet, Microsoft Edge with Copilot and Brave Leo. Dia is the exception, since new Mac users now pay $20 a month for its AI. Beyond that split, price is not the interesting axis.
The interesting axis is what the browser does with what you are looking at. An AI browser reads your pages to be useful, and in the agentic modes it acts on them too, clicking and filling and submitting on your behalf. That is a genuinely different trust relationship from a browser that only renders.
Here is what each one is, checked on the vendors' own pages in September 2026. ChatGPT Atlas, which sat on earlier versions of this list, stopped working on August 9, 2026, with OpenAI moving its agent features into the ChatGPT desktop app.
Quick comparison
| Browser | Free | Paid upgrade |
|---|---|---|
| Brave Leo | Free AI, no account | Leo Premium $14.99/mo |
| Perplexity Comet | Free AI | Pro from $17/mo, billed yearly |
| Microsoft Edge (Copilot) | Free AI, with usage limits | Agents need a Microsoft 365 subscription |
| Dia | Browser only, no AI | Better Answers $20/mo |
How these rate, aggregated across platforms
Scores from Toolradar, aggregated across G2, Capterra, SourceForge and PeerSpot.
| Browser | Aggregated rating | Reviews |
|---|---|---|
| Brave | 4.6 | 919 |
| Dia | 4.3 | 44 |
| Perplexity Comet | 4.0 | 24 |
Brave's 4.6 across 919 reviews is the only figure here with weight, and it belongs to the browser rather than to Leo, the AI layer inside it. The AI browsers proper are new enough that their samples are in the dozens: Comet's 4.0 comes from 24 reviews and includes a single 1.5 on PeerSpot that pulls the aggregate down noticeably.
That thinness is expected for products launched recently into a consumer market, and it means this comparison has to rest on what each browser does with your pages, which is what the rest of the article covers.
Perplexity Comet: search-native browsing
Comet is free, and Perplexity says a free version will always include Comet. Pro starts at $17 a month on yearly billing.
Comet is Perplexity's browser, and it behaves like it: the answer layer is the interface rather than an add-on. Ask about the page, ask about the topic, get a cited response without a separate tab.
Because Perplexity's whole product is sourced answers, the integration is coherent rather than bolted on. If you already use Perplexity for research, this removes a step.
The free tier is usable daily on Mac, Windows, iOS and Android. Pro raises limits and adds deep research and model choice, and if you already pay for Perplexity Pro you already have it.
Microsoft Edge with Copilot: the free assistant you may already have
Copilot in Edge is free with usage limits, and agents and complex multi-step tasks require a Microsoft 365 subscription.
On Windows this is the AI browser with no install step. The sidepane summarizes the page, compares across your open tabs and drafts text, Journeys groups past browsing into topics you can resume, and Vision lets you talk through what is on screen out loud.
The free tier covers reading and answering. Acting on sites for you is the paid part, and that is the capability to think about before enabling: an agent with access to your logged-in sessions can do anything you can do, including things you did not intend.
The trade-off is data. Copilot reads your tabs to answer, and optional features such as memory and context clues let it learn from past work, so check which of them are switched on.
Dia: browsing as a writing surface
Dia is free to install, but as of September 2026 the free plan has no AI features for new Mac users, and AI chat starts with Better Answers at $20 a month. New users get a 14-day trial first, while existing users and Windows users keep their current access until Dia gives at least 30 days' notice.
Dia, from the team behind Arc, treats the browser as somewhere you work rather than somewhere you look. The AI has context across your open tabs, so you can ask it to draft something using three pages you have open without pasting anything.
For research-then-write workflows, that tab-aware context is the differentiator, and it is a genuinely good idea rather than a repackaged sidebar.
The company's history with Arc is worth knowing when deciding how much of your workflow to move in, because browsers are expensive to leave.
Brave Leo: the private one, with no account needed
Brave Leo is free, with Leo Premium at $14.99 a month for more models and faster responses.
Leo is the AI layer inside Brave, and the whole proposition is that it does not require an account, does not build a profile, and does not retain your conversations. In a category defined by reading everything you look at, that stance is the differentiator.
Answer quality is a step below the frontier assistants. What you get instead is a browser with tracker blocking as a default and an assistant that is not also an advertising business.
The question worth answering before you install any of them
An AI browser reads your pages, including the private ones. Your email, your company's admin panels, your bank. Even without agentic mode, the assistant has access to what is on screen when you ask about it. Check what is sent to a server versus processed locally, and check whether that differs on the free tier.
Agentic browsing changes the risk from reading to acting. A page can contain instructions aimed at your agent rather than at you. That is prompt injection, it works, and the mitigation is not technical yet: it is deciding which sites you let an agent operate on while you are logged in.
Browser switching costs are real. Passwords, extensions, sessions, muscle memory. All four import from Chrome, and the friction is in the weeks afterwards when an extension you relied on has no equivalent.
A sidebar may be enough. Before switching browser, try an assistant extension in the browser you already use. For many people the AI-browser benefit is available without moving house, and the ones who genuinely gain are those using the tab-aware or agentic features rather than a chat panel.
What an AI browser costs the sites you visit
There is a second-order effect worth naming, because it is already changing what the web looks like.
A browser that answers your question about a page has, by definition, saved you from reading the page. Extend that across an agentic mode that visits five sites and returns a summary, and the visit still happened but the human attention did not. For publishers, that is a page view without a reader, and advertising is priced on readers.
You can see sites responding already: more content behind logins, more aggressive bot detection, and a growing set of publishers blocking AI agents outright in robots.txt. Some of those blocks will catch the browser you are using, which is why an agentic task occasionally fails on a site that works fine when you click through yourself.
This is not a reason to avoid these tools. It is a reason to expect the experience to be uneven and to get more uneven, and to understand why a site that loads normally refuses to cooperate with your agent. The technology is ahead of the arrangement between the parties, and the arrangement is what will decide how well these browsers work in two years.
How to choose
For research with citations, Comet, particularly if you already use Perplexity.
For an assistant with no install on Windows, Edge with Copilot, keeping in mind that agentic tasks sit behind Microsoft 365.
For research-then-write, Dia, whose cross-tab context is the strongest idea here, once you accept that its AI is a paid product.
For privacy, Brave Leo, free without an account, with a paid upgrade if you outgrow the free limits.
The honest recommendation for most people is to keep your current browser and add an assistant to it. Switch when a specific capability, agentic tasks or cross-tab context, is something you would use weekly, because those are the two things a sidebar cannot replicate.
Related: our ranked guide to AI browsers covers paid options such as Opera Neon, our guide to AI search engines covers the answer layer without changing browser, and the Dupple reviews directory has current pricing.
FAQ
Are AI browsers free?
All four here are free to install, and three include a free AI assistant: Perplexity Comet, Microsoft Edge with Copilot and Brave Leo. Dia is the exception: its free plan is a browser with no AI features for new Mac users, and AI starts at $20 a month on Better Answers. Upgrades elsewhere raise limits, from $14.99 a month for Leo Premium to a Microsoft 365 subscription for Edge's agents.
Are AI browsers safe?
They introduce a risk ordinary browsers do not have, and it is worth understanding rather than dismissing. The assistant can read what is on screen, including private pages, and in agentic modes it can act using your logged-in sessions. Prompt injection from a malicious page is a real technique. Limit agentic mode to sites you trust.
Which AI browser is most private?
Brave Leo, which requires no account for the free tier, does not build a profile from your browsing, and sits inside a browser that blocks trackers by default. Leo Premium costs $14.99 a month if you need more models.
Should I switch my main browser?
Probably not yet. The features most people would use daily, an assistant that answers about the page, are available as extensions in the browser you already have. Switching makes sense for the two capabilities extensions cannot match: agentic task completion and assistant context across all your open tabs.
