browser-use（浏览器使用）

Browser Automation with browser-use CLI

The browser-use command provides fast, persistent browser automation. It maintains browser sessions across commands, enabling complex multi-step workflows.

Installation

# Run without installing (recommended for one-off use)
uvx "browser-use[cli]" open https://example.com

# Or install permanently
uv pip install "browser-use[cli]"

# Install browser dependencies (Chromium)
browser-use install

Quick Start

browser-use open https://example.com           # Navigate to URL
browser-use state                              # Get page elements with indices
browser-use click 5                            # Click element by index
browser-use type "Hello World"                 # Type text
browser-use screenshot                         # Take screenshot
browser-use close                              # Close browser

Core Workflow

1. Navigate: browser-use open <url> - Opens URL (starts browser if needed)
2. Inspect: browser-use state - Returns clickable elements with indices
3. Interact: Use indices from state to interact (browser-use click 5, browser-use input 3 "text")
4. Verify: browser-use state or browser-use screenshot to confirm actions
5. Repeat: Browser stays open between commands

Browser Modes

browser-use --browser chromium open <url>      # Default: headless Chromium
browser-use --browser chromium --headed open <url>  # Visible Chromium window
browser-use --browser real open <url>          # User's Chrome with login sessions
browser-use --browser remote open <url>        # Cloud browser (requires API key)

• chromium: Fast, isolated, headless by default
• real: Uses your Chrome with cookies, extensions, logged-in sessions
• remote: Cloud-hosted browser with proxy support (requires BROWSER_USE_API_KEY)

Commands

Navigation

browser-use open <url>                    # Navigate to URL
browser-use back                          # Go back in history
browser-use scroll down                   # Scroll down
browser-use scroll up                     # Scroll up

Page State

browser-use state                         # Get URL, title, and clickable elements
browser-use screenshot                    # Take screenshot (outputs base64)
browser-use screenshot path.png           # Save screenshot to file
browser-use screenshot --full path.png    # Full page screenshot

Interactions (use indices from browser-use state)

browser-use click <index>                 # Click element
browser-use type "text"                   # Type text into focused element
browser-use input <index> "text"          # Click element, then type text
browser-use keys "Enter"                  # Send keyboard keys
browser-use keys "Control+a"              # Send key combination
browser-use select <index> "option"       # Select dropdown option

Tab Management

browser-use switch <tab>                  # Switch to tab by index
browser-use close-tab                     # Close current tab
browser-use close-tab <tab>               # Close specific tab

JavaScript & Data

browser-use eval "document.title"         # Execute JavaScript, return result
browser-use extract "all product prices"  # Extract data using LLM (requires API key)

Cookies

browser-use cookies get                   # Get all cookies
browser-use cookies get --url <url>       # Get cookies for specific URL
browser-use cookies set <name> <value>    # Set a cookie
browser-use cookies set name val --domain .example.com --secure --http-only
browser-use cookies clear                 # Clear all cookies
browser-use cookies clear --url <url>     # Clear cookies for specific URL
browser-use cookies export <file>         # Export all cookies to JSON file
browser-use cookies export <file> --url <url>  # Export cookies for specific URL
browser-use cookies import <file>         # Import cookies from JSON file

Wait Conditions

browser-use wait selector "h1"            # Wait for element to be visible
browser-use wait selector ".loading" --state hidden  # Wait for element to disappear
browser-use wait selector "#btn" --state attached    # Wait for element in DOM
browser-use wait text "Success"           # Wait for text to appear
browser-use wait selector "h1" --timeout 5000  # Custom timeout in ms

Additional Interactions

browser-use hover <index>                 # Hover over element (triggers CSS :hover)
browser-use dblclick <index>              # Double-click element
browser-use rightclick <index>            # Right-click element (context menu)

Information Retrieval

browser-use get title                     # Get page title
browser-use get html                      # Get full page HTML
browser-use get html --selector "h1"      # Get HTML of specific element
browser-use get text <index>              # Get text content of element
browser-use get value <index>             # Get value of input/textarea
browser-use get attributes <index>        # Get all attributes of element
browser-use get bbox <index>              # Get bounding box (x, y, width, height)

Python Execution (Persistent Session)

browser-use python "x = 42"               # Set variable
browser-use python "print(x)"             # Access variable (outputs: 42)
browser-use python "print(browser.url)"   # Access browser object
browser-use python --vars                 # Show defined variables
browser-use python --reset                # Clear Python namespace
browser-use python --file script.py       # Execute Python file

The Python session maintains state across commands. The browser object provides:

• browser.url - Current page URL
• browser.title - Page title
• browser.goto(url) - Navigate
• browser.click(index) - Click element
• browser.type(text) - Type text
• browser.screenshot(path) - Take screenshot
• browser.scroll() - Scroll page
• browser.html - Get page HTML

Agent Tasks (Requires API Key)

browser-use run "Fill the contact form with test data"    # Run AI agent
browser-use run "Extract all product prices" --max-steps 50

Agent tasks use an LLM to autonomously complete complex browser tasks. Requires BROWSER_USE_API_KEY or configured LLM API key (OPENAI_API_KEY, ANTHROPIC_API_KEY, etc).

Session Management

browser-use sessions                      # List active sessions
browser-use close                         # Close current session
browser-use close --all                   # Close all sessions

Profile Management

browser-use profile list-local            # List local Chrome profiles

Before opening a real browser (--browser real), always ask the user if they want to use a specific Chrome profile or no profile. Use profile list-local to show available profiles:

browser-use profile list-local
# Output: Default: Person 1 (user@gmail.com)
#         Profile 1: Work (work@company.com)

# With a specific profile (has that profile's cookies/logins)
browser-use --browser real --profile "Profile 1" open https://gmail.com

# Without a profile (fresh browser, no existing logins)
browser-use --browser real open https://gmail.com

# Headless mode (no visible window) - useful for cookie export
browser-use --browser real --profile "Default" cookies export /tmp/cookies.json

Each Chrome profile has its own cookies, history, and logged-in sessions. Choosing the right profile determines whether sites will be pre-authenticated.

Cloud Profiles

Cloud profiles store browser state (cookies) in Browser-Use Cloud, persisting across sessions. Requires BROWSER_USE_API_KEY.

browser-use profile list                      # List cloud profiles
browser-use profile get <id>                  # Get profile details
browser-use profile update <id> --name "New"  # Rename profile
browser-use profile delete <id>               # Delete profile

Use a cloud profile with --browser remote --profile <id>:

browser-use --browser remote --profile abc-123 open https://example.com

Syncing Cookies to Cloud

⚠️ IMPORTANT: Before syncing cookies from a local browser to the cloud, the agent MUST:

1. Ask the user which local Chrome profile to use (browser-use profile list-local)
2. Ask which domain(s) to sync - do NOT default to syncing the full profile
3. Confirm before proceeding

Default behavior: Create a NEW cloud profile for each domain sync. This ensures clear separation of concerns for cookies. Users can add cookies to existing profiles if needed.

Step 1: List available profiles and cookies

# List local Chrome profiles
browser-use profile list-local
# → Default: Person 1 (user@gmail.com)
# → Profile 1: Work (work@company.com)

# See what cookies are in a profile
browser-use profile cookies "Default"
# → youtube.com: 23
# → google.com: 18
# → github.com: 2

Step 2: Sync cookies (three levels of control)

1. Domain-specific sync (recommended default)

browser-use profile sync --from "Default" --domain youtube.com
# Creates new cloud profile: "Chrome - Default (youtube.com)"
# Only syncs youtube.com cookies

This is the recommended approach - sync only the cookies you need.

2. Full profile sync (use with caution)

browser-use profile sync --from "Default"
# Syncs ALL cookies from the profile

⚠️ Warning: This syncs ALL cookies including sensitive data, tracking cookies, session tokens for every site, etc. Only use when the user explicitly needs their entire browser state.

3. Fine-grained control (advanced)

# Export cookies to file
browser-use --browser real --profile "Default" cookies export /tmp/cookies.json

# Manually edit the JSON to keep only specific cookies

# Import to cloud profile
browser-use --browser remote --profile <id> cookies import /tmp/cookies.json

For users who need individual cookie-level control.

Step 3: Use the synced profile

browser-use --browser remote --profile <id> open https://youtube.com

Adding cookies to existing profiles:

# Sync additional domain to existing profile
browser-use --browser real --profile "Default" cookies export /tmp/cookies.json
browser-use --browser remote --profile <existing-id> cookies import /tmp/cookies.json

Managing profiles:

browser-use profile update <id> --name "New Name"  # Rename
browser-use profile delete <id>                    # Delete

Server Control

browser-use server status                 # Check if server is running
browser-use server stop                   # Stop server
browser-use server logs                   # View server logs

Setup

browser-use install                       # Install Chromium and system dependencies

Global Options

Session behavior: All commands without --session use the same "default" session. The browser stays open and is reused across commands. Use --session NAME to run multiple browsers in parallel.

API Key Configuration

Some features (run, extract, --browser remote) require an API key. The CLI checks these locations in order:

1. --api-key command line flag
2. BROWSER_USE_API_KEY environment variable
3. ~/.config/browser-use/config.json file

To configure permanently:

mkdir -p ~/.config/browser-use
echo '{"api_key": "your-key-here"}' > ~/.config/browser-use/config.json

Examples

Form Submission

browser-use open https://example.com/contact
browser-use state
# Shows: [0] input "Name", [1] input "Email", [2] textarea "Message", [3] button "Submit"
browser-use input 0 "John Doe"
browser-use input 1 "john@example.com"
browser-use input 2 "Hello, this is a test message."
browser-use click 3
browser-use state  # Verify success

Multi-Session Workflows

browser-use --session work open https://work.example.com
browser-use --session personal open https://personal.example.com
browser-use --session work state    # Check work session
browser-use --session personal state  # Check personal session
browser-use close --all             # Close both sessions

Data Extraction with Python

browser-use open https://example.com/products
browser-use python "
products = []
for i in range(20):
    browser.scroll('down')
browser.screenshot('products.png')
"
browser-use python "print(f'Captured {len(products)} products')"

Using Real Browser (Logged-In Sessions)

browser-use --browser real open https://gmail.com
# Uses your actual Chrome with existing login sessions
browser-use state  # Already logged in!

Tips

1. Always run browser-use state first to see available elements and their indices
2. Use --headed for debugging to see what the browser is doing
3. Sessions persist - the browser stays open between commands
4. Use --json for parsing output programmatically
5. Python variables persist across browser-use python commands within a session
6. Real browser mode preserves your login sessions and extensions
7. CLI aliases: bu, browser, and browseruse all work identically to browser-use

Troubleshooting

Browser won't start?

browser-use install                   # Install/reinstall Chromium
browser-use server stop               # Stop any stuck server
browser-use --headed open <url>       # Try with visible window

Element not found?

browser-use state                     # Check current elements
browser-use scroll down               # Element might be below fold
browser-use state                     # Check again

Session issues?

browser-use sessions                  # Check active sessions
browser-use close --all               # Clean slate
browser-use open <url>                # Fresh start

Cleanup

Always close the browser when done. Run this after completing browser automation:

browser-use close