browser-automationdeveloper-tools

Chrome DevTools

by chromedevtools

Use Chrome DevTools for web site test speed, debugging, and performance analysis. The essential chrome developer tools f

Provides direct Chrome browser control through DevTools for web automation, debugging, and performance analysis using accessibility tree snapshots for reliable element targeting, automatic page event handling, and integrated performance tracing with actionable insights.

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Uses accessibility trees for reliable automationBuilt on Puppeteer with automatic wait handlingIntegrated performance tracing with CrUX data

best for

  • / Web developers debugging applications
  • / QA engineers automating browser testing
  • / Performance analysts optimizing web apps
  • / AI assistants performing web automation tasks

capabilities

  • / Click, drag, fill forms, and upload files on web pages
  • / Monitor network requests and console messages
  • / Take performance traces with actionable insights
  • / Debug web applications with DevTools integration
  • / Navigate and control multiple browser tabs
  • / Extract accessibility tree snapshots for element targeting

what it does

Gives AI assistants direct control over a Chrome browser through DevTools for automation, debugging, and performance analysis. Uses accessibility trees for reliable element targeting and includes network monitoring capabilities.

about

Chrome DevTools is an official MCP server published by chromedevtools that provides AI assistants with tools and capabilities via the Model Context Protocol. Use Chrome DevTools for web site test speed, debugging, and performance analysis. The essential chrome developer tools f It is categorized under browser automation, developer tools. This server exposes 26 tools that AI clients can invoke during conversations and coding sessions.

how to install

You can install Chrome DevTools in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server runs locally on your machine via the stdio transport.

license

Apache-2.0

Chrome DevTools is released under the Apache-2.0 license. This is a permissive open-source license, meaning you can freely use, modify, and distribute the software.

readme

Chrome DevTools MCP

npm chrome-devtools-mcp package

chrome-devtools-mcp lets your coding agent (such as Gemini, Claude, Cursor or Copilot) control and inspect a live Chrome browser. It acts as a Model-Context-Protocol (MCP) server, giving your AI coding assistant access to the full power of Chrome DevTools for reliable automation, in-depth debugging, and performance analysis.

Tool reference | Changelog | Contributing | Troubleshooting | Design Principles

Key features

  • Get performance insights: Uses Chrome DevTools to record traces and extract actionable performance insights.
  • Advanced browser debugging: Analyze network requests, take screenshots and check browser console messages (with source-mapped stack traces).
  • Reliable automation. Uses puppeteer to automate actions in Chrome and automatically wait for action results.

Disclaimers

chrome-devtools-mcp exposes content of the browser instance to the MCP clients allowing them to inspect, debug, and modify any data in the browser or DevTools. Avoid sharing sensitive or personal information that you don't want to share with MCP clients.

Performance tools may send trace URLs to the Google CrUX API to fetch real-user experience data. This helps provide a holistic performance picture by presenting field data alongside lab data. This data is collected by the Chrome User Experience Report (CrUX). To disable this, run with the --no-performance-crux flag.

Usage statistics

Google collects usage statistics (such as tool invocation success rates, latency, and environment information) to improve the reliability and performance of Chrome DevTools MCP.

Data collection is enabled by default. You can opt-out by passing the --no-usage-statistics flag when starting the server:

"args": ["-y", "chrome-devtools-mcp@latest", "--no-usage-statistics"]

Google handles this data in accordance with the Google Privacy Policy.

Google's collection of usage statistics for Chrome DevTools MCP is independent from the Chrome browser's usage statistics. Opting out of Chrome metrics does not automatically opt you out of this tool, and vice-versa.

Collection is disabled if CHROME_DEVTOOLS_MCP_NO_USAGE_STATISTICS or CI env variables are set.

Requirements

Getting started

Add the following config to your MCP client:

{
  "mcpServers": {
    "chrome-devtools": {
      "command": "npx",
      "args": ["-y", "chrome-devtools-mcp@latest"]
    }
  }
}

[!NOTE]
Using chrome-devtools-mcp@latest ensures that your MCP client will always use the latest version of the Chrome DevTools MCP server.

If you are interested in doing only basic browser tasks, use the --slim mode:

{
  "mcpServers": {
    "chrome-devtools": {
      "command": "npx",
      "args": ["-y", "chrome-devtools-mcp@latest", "--slim", "--headless"]
    }
  }
}

See Slim tool reference.

MCP Client configuration

<details> <summary>Amp</summary> Follow https://ampcode.com/manual#mcp and use the config provided above. You can also install the Chrome DevTools MCP server using the CLI:
amp mcp add chrome-devtools -- npx chrome-devtools-mcp@latest
</details> <details> <summary>Antigravity</summary>

To use the Chrome DevTools MCP server follow the instructions from <a href="https://antigravity.google/docs/mcp">Antigravity's docs</a> to install a custom MCP server. Add the following config to the MCP servers config:

{
  "mcpServers": {
    "chrome-devtools": {
      "command": "npx",
      "args": [
        "chrome-devtools-mcp@latest",
        "--browser-url=http://127.0.0.1:9222",
        "-y"
      ]
    }
  }
}

This will make the Chrome DevTools MCP server automatically connect to the browser that Antigravity is using. If you are not using port 9222, make sure to adjust accordingly.

Chrome DevTools MCP will not start the browser instance automatically using this approach because the Chrome DevTools MCP server connects to Antigravity's built-in browser. If the browser is not already running, you have to start it first by clicking the Chrome icon at the top right corner.

</details> <details> <summary>Claude Code</summary>

Install via CLI (MCP only)

Use the Claude Code CLI to add the Chrome DevTools MCP server (<a href="https://code.claude.com/docs/en/mcp">guide</a>):

claude mcp add chrome-devtools --scope user npx chrome-devtools-mcp@latest

Install as a Plugin (MCP + Skills)

[!NOTE]
If you already had Chrome DevTools MCP installed previously for Claude Code, make sure to remove it first from your installation and configuration files.

To install Chrome DevTools MCP with skills, add the marketplace registry in Claude Code:

/plugin marketplace add ChromeDevTools/chrome-devtools-mcp

Then, install the plugin:

/plugin install chrome-devtools-mcp

Restart Claude Code to have the MCP server and skills load (check with /skills).

</details> <details> <summary>Cline</summary> Follow https://docs.cline.bot/mcp/configuring-mcp-servers and use the config provided above. </details> <details> <summary>Codex</summary> Follow the <a href="https://developers.openai.com/codex/mcp/#configure-with-the-cli">configure MCP guide</a> using the standard config from above. You can also install the Chrome DevTools MCP server using the Codex CLI:
codex mcp add chrome-devtools -- npx chrome-devtools-mcp@latest

On Windows 11

Configure the Chrome install location and increase the startup timeout by updating .codex/config.toml and adding the following env and startup_timeout_ms parameters:

[mcp_servers.chrome-devtools]
command = "cmd"
args = [
    "/c",
    "npx",
    "-y",
    "chrome-devtools-mcp@latest",
]
env = { SystemRoot="C:\Windows", PROGRAMFILES="C:\Program Files" }
startup_timeout_ms = 20_000
</details> <details> <summary>Copilot CLI</summary>

Start Copilot CLI:

copilot

Start the dialog to add a new MCP server by running:

/mcp add

Configure the following fields and press CTRL+S to save the configuration:

  • Server name: chrome-devtools
  • Server Type: [1] Local
  • Command: npx -y chrome-devtools-mcp@latest
</details> <details> <summary>Copilot / VS Code</summary>

Click the button to install:

<img src="https://img.shields.io/badge/VS_Code-VS_Code?style=flat-square&label=Install%20Server&color=0098FF" alt="Install in VS Code">

<img src="https://img.shields.io/badge/VS_Code_Insiders-VS_Code_Insiders?style=flat-square&label=Install%20Server&color=24bfa5" alt="Install in VS Code Insiders">

Or install manually:

Follow the MCP install <a href="https://code.visualstudio.com/docs/copilot/chat/mcp-servers#_add-an-mcp-server">guide</a>, with the standard config from above. You can also install the Chrome DevTools MCP server using the VS Code CLI:

code --add-mcp '{"name":"io.github.ChromeDevTools/chrome-devtools-mcp","command":"npx","args":["-y","chrome-devtools-mcp"],"env":{}}'
</details> <details> <summary>Cursor</summary>

Click the button to install:

<img src="https://cursor.com/deeplink/mcp-install-dark.svg" alt="Install in Cursor">

Or install manually:

Go to Cursor Settings -> MCP -> New MCP Server. Use the config provided above.

</details> <details> <summary>Factory CLI</summary> Use the Factory CLI to add the Chrome DevTools MCP server (<a href="https://docs.factory.ai/cli/configuration/mcp">guide</a>):
droid mcp add chrome-devtools "npx -y chrome-devtools-mcp@latest"
</details> <details> <summary>Gemini CLI</summary> Install the Chrome DevTools MCP server using the Gemini CLI.

Project wide:

# Either MCP only:
gemini mcp add chrome-devtools npx chrome-devtools-mcp@latest
# Or as a Gemini extension (MCP+Skills):
gemini extensions install --auto-update https://github.com/ChromeDevTools/chrome-devtools-mcp

Globally:

gemini mcp add -s user chrome-devtools npx chrome-devtools-mcp@latest

Alternatively, follow the <a href="https://github.com/google-gemini/gemini-cli/blob/main/docs/tools/mcp-server.md#how-to-set-up-your-mcp-server">MCP guide</a> and use the standard config from above.

</details> <details> <summary>Gemini Code Assist</summary> Follow the <a href="https://cloud.google.com/gemini/docs/codeassist/use-agentic-chat-pair-programmer#configure-mcp-servers">configure MCP guide</a> using the standard config from above. </details> <details> <summary>JetBrains AI Assistant & Junie</summary>