BrowserOS is an open-source Chromium fork that runs locally and preserves existing browser logins while allowing AI agents to execute real web tasks. It provides an agent built into the browser with built-in tools, session replay, and integrations for external coding tools or local models.
Project overview
It builds the agent directly into the Chromium source rather than using an extension, aiming to offer deeper browser integration while running sessions locally on the user's machine.
Project type
MCP · AI Agent · Workflow
Use cases
Automation
Deployment
Refer to project documentation
License
AGPL-3.0
Best for
General users and developers seeking to automate authenticated web tasks locally using natural language.
Users wanting to combine browser automation with local file operations in a single session.
Key capabilities
An AI agent built into every new tab capable of summarising pages, clicking through flows, extracting data, and running scheduled tasks using 53+ built-in browser tools.
Saves agent sessions as scrubbable videos with step-by-step action timelines, allowing users to watch agents live and replay past runs.
Combines browser automation with local file operations within a single agent session.
Dashboard for connecting AI tools like Claude Code, Codex, Cursor, VS Code, Zed, OpenCode, and Antigravity with a single click.
Allows running agents on autopilot on daily, hourly, or minute intervals.
Includes uBlock Origin with full Manifest V2 support.
Ability to point the agent at a page, instruct it on what to extract, and receive structured data back.
Limitations and risks
BrowserClaw runs only on macOS and Windows, though Linux is available for BrowserOS.
Building the browser from source requires approximately 100GB of disk space.
Sharing logins with AI tools introduces risks if the agent performs unintended actions on authenticated sites.
Getting started
Download and install the application for your OS, import from Chrome or sign into your accounts, and connect your AI provider or local model tool. No coding is required for standard use.
Evidence and sources
GitHub project description: 🌐 The open-source Agentic browser; alternative to ChatGPT Atlas, Perplexity Comet, Dia.
README: [](https://cdn.browseros.com/download/BrowserClaw.dmg) [![Download fo…
README: Claude Code, Codex, Cursor, or any MCP client drives it using the accounts you're already signed into, while you watch live and replay every step.
README: Your AI is smart, but it can't press the buttons. Ask it to book a flight, download an invoice, or reply to an email, and it stops at the login screen. BrowserClaw fixes that.
README: Free · Open source (AGPL-3.0) · Local-only · Bring your own AI keys