BrowserOS

BrowserOS is an open-source web browser that lets AI agents browse and act using your logged-in accounts, built for developers and power users who already work with agents. Instead of competing on its own built-in assistant, it acts as the hands for agents such as Claude Code, Cursor or Codex, connected through MCP. Being free, open source and local-first sets it apart from paid agentic browsers that route your activity through their own cloud.

What is BrowserOS used for?

BrowserOS is used to give existing AI agents a real browser with your sessions, so they can complete web tasks that need a login.

• Letting coding and general agents open tabs, navigate, click, read and fill forms
• Running several agents in parallel, each in its own tab
• Connecting agents through MCP with one-click setup for Claude Code, Cowork, Cursor, Codex, VS Code and Zed
• Reviewing what an agent did through replayable session videos
• Reducing token use with compact page snapshots and batched actions
• Keeping browsing data on your own machine while using your own model keys

Who BrowserOS is best for

BrowserOS suits developers, technical founders, researchers and automation enthusiasts who already use an AI agent and want it to work in signed-in web apps. Teams that prefer open-source tools they can audit will appreciate the AGPL license. Non-technical users looking for a polished assistant that works out of the box will find a commercial AI browser easier.

BrowserOS pricing

As of October 2026, BrowserOS is free to download and use. You bring your own AI provider API keys and pay those providers directly for model usage. An enterprise option is available by contacting the team by email, and no enterprise prices are published.

BrowserOS limitations

• Model costs depend on the API keys you connect, not on BrowserOS
• Setup assumes some comfort with MCP and agent tools
• The download section highlights macOS and Windows, while Linux is listed in the FAQ
• Agents acting in signed-in accounts can make costly mistakes without review

BrowserOS vs alternatives

Comet Browser is the better pick for people who want a consumer AI browser with built-in search answers and no setup. Browser Use suits developers who want an open-source library to script browser agents in their own code or cloud. Claude in Chrome is simpler if you want Claude's agent inside the Chrome profile you already use. Dia fits everyday browsing with an AI assistant. BrowserOS wins when you want a free, open-source browser that your existing agents can drive with your real logins.

Tips for getting started with BrowserOS

Install BrowserOS, sign in to the sites your agent will need, then connect your agent through the one-click MCP setup. Give the agent a narrow first task and watch the session replay to learn how it navigates. Keep a separate profile for sensitive accounts you do not want agents to touch.

BrowserOS FAQ

Is BrowserOS free?

Yes. BrowserOS is free and open source under the AGPL-3.0 license, and you only pay your chosen AI provider for model usage.

Which AI agents work with BrowserOS?

BrowserOS offers one-click MCP setup for Claude Code, Cowork, Cursor, Codex, VS Code and Zed, and other agents can connect through MCP.

Does BrowserOS keep my data private?

BrowserOS says browsing data stays on your machine and that you bring your own AI provider keys, so data goes only to the model provider you choose.

BrowserOS vs Comet Browser: which is better?

Comet Browser is better for an easy consumer AI browser, while BrowserOS is better for technical users who want open-source software their own agents can control.