Chrome Devtools Cli

chrome-devtools take_snapshot 1 # Take a text snapshot of the page to get UIDs for elementschrome-devtools click 1 "id" # Clicks on the provided elementchrome-devtools click 1 "id" --dblClick true --includeSnapshot true # Double clicks and returns a snapshotchrome-devtools drag 1 "src" "dst" # Drag an element onto another elementchrome-devtools drag 1 "src" "dst" --includeSnapshot true # Drag an element and return a snapshotchrome-devtools fill 1 "id" "text" # Type text into an input, textarea, or select an optionchrome-devtools fill 1 "id" "text" --includeSnapshot true # Fill an element and return a snapshotchrome-devtools handle_dialog 1 accept # Handle a browser dialog (accept/dismiss)chrome-devtools handle_dialog 1 dismiss --promptText "hi" # Dismiss a dialog with prompt textchrome-devtools hover 1 "id" # Hover over the provided elementchrome-devtools hover 1 "id" --includeSnapshot true # Hover over an element and return a snapshotchrome-devtools press_key 1 "Enter" # Press a key or key combination ("Control+A", "Escape")chrome-devtools press_key 1 "Control+A" --includeSnapshot true # Press a key and return a snapshotchrome-devtools type_text 1 "hello" # Type text using keyboard into a focused inputchrome-devtools type_text 1 "hello" --submitKey "Enter" # Type text and press a submit keychrome-devtools upload_file 1 "id" "file.txt" # Upload a file through a provided elementchrome-devtools upload_file 1 "id" "file.txt" --includeSnapshot true # Upload a file and return a snapshot

chrome-devtools close_page 1 # Closes the page by its indexchrome-devtools list_pages # Get a list of pages open in the browserchrome-devtools navigate_page 1 --url "https://example.com" # Navigates the currently selected page to a URLchrome-devtools navigate_page 1 --type "reload" --ignoreCache true # Reload page ignoring cachechrome-devtools navigate_page 1 --url "https://example.com" --timeout 5000 # Navigate with a timeoutchrome-devtools navigate_page 1 --handleBeforeUnload "accept" # Handle before unload dialogchrome-devtools navigate_page 1 --type "back" --initScript "foo()" # Navigate back and run an init scriptchrome-devtools new_page "https://example.com" # Creates a new pagechrome-devtools new_page "https://example.com" --background true --timeout 5000 # Create new page in backgroundchrome-devtools new_page "https://example.com" --isolatedContext "ctx" # Create new page with isolated contextchrome-devtools select_page 1 # Select a page as a context for future tool callschrome-devtools select_page 1 --bringToFront true # Select a page and bring it to front

chrome-devtools emulate 1 --networkConditions "Offline" # Emulate network conditionschrome-devtools emulate 1 --cpuThrottlingRate 4 --geolocation "0x0" # Emulate CPU throttling and geolocationchrome-devtools emulate 1 --colorScheme "dark" --viewport "1920x1080" # Emulate color scheme and viewportchrome-devtools emulate 1 --userAgent "Mozilla/5.0..." # Emulate user agentchrome-devtools resize_page 1 1920 1080 # Resizes the selected page's window

chrome-devtools performance_analyze_insight 1 "1" "LCPBreakdown" # Get more details on a specific Performance Insight (pageId, insightSetId, insightName)chrome-devtools performance_start_trace 1 --reload true --autoStop false # Starts a performance trace recording (reload, autoStop)chrome-devtools performance_start_trace 1 --reload true --autoStop true --filePath "t.json.gz" # Start trace and save to a filechrome-devtools performance_stop_trace 1 # Stops the active performance tracechrome-devtools performance_stop_trace 1 --filePath "t.json.gz" # Stop trace and save to a file

chrome-devtools take_heapsnapshot 1 "./snap.heapsnapshot" # Capture a memory heap snapshot

chrome-devtools get_heapsnapshot_summary "./snap.heapsnapshot" # Get snapshot summary statschrome-devtools compare_heapsnapshots "./base.heapsnapshot" "./target.heapsnapshot" # Compare two snapshotschrome-devtools get_heapsnapshot_class_nodes "./snap.heapsnapshot" "Array" # Inspect class instanceschrome-devtools get_heapsnapshot_details "./snap.heapsnapshot" 123 # Detailed object propertieschrome-devtools get_heapsnapshot_dominators "./snap.heapsnapshot" 123 # Dominator tree for nodechrome-devtools get_heapsnapshot_duplicate_strings "./snap.heapsnapshot" # Find duplicated stringschrome-devtools get_heapsnapshot_edges "./snap.heapsnapshot" 123 # Node edges/referenceschrome-devtools get_heapsnapshot_object_details "./snap.heapsnapshot" 123 # Object details by node IDchrome-devtools get_heapsnapshot_retainers "./snap.heapsnapshot" 123 # Retaining objectschrome-devtools get_heapsnapshot_retaining_paths "./snap.heapsnapshot" 123 # Shortest retaining pathschrome-devtools close_heapsnapshot "./snap.heapsnapshot" # Free memory from loaded snapshot

chrome-devtools get_network_request 1 # Get the currently selected network request for page 1chrome-devtools get_network_request 1 --reqid 1 --requestFilePath "req.md" # Get request by id and save to filechrome-devtools get_network_request 1 --responseFilePath "res.md" # Save response body to filechrome-devtools list_network_requests 1 # List all network requests for page 1chrome-devtools list_network_requests 1 --pageSize 50 --pageIdx 0 # List network requests with paginationchrome-devtools list_network_requests 1 --resourceTypes Fetch # Filter requests by resource typechrome-devtools list_network_requests 1 --includePreservedRequests true # Include preserved requests

chrome-devtools evaluate_script "() => document.title" --pageId 1 # Evaluate a JavaScript function on page 1chrome-devtools evaluate_script "(a) => a.innerText" --pageId 1 --args 1_4 # Evaluate JS with UID arguments on page 1chrome-devtools get_console_message 1 1 # Gets a console message by its IDchrome-devtools lighthouse_audit 1 --mode "navigation" # Run Lighthouse audit for navigationchrome-devtools lighthouse_audit 1 --mode "snapshot" --device "mobile" # Run Lighthouse audit for a snapshot on mobilechrome-devtools lighthouse_audit 1 --outputDirPath ./out # Run Lighthouse audit and save reportschrome-devtools list_console_messages 1 # List all console messageschrome-devtools list_console_messages 1 --pageSize 20 --pageIdx 1 # List console messages with paginationchrome-devtools list_console_messages 1 --types error --types info # Filter console messages by typechrome-devtools list_console_messages 1 --includePreservedMessages true # Include preserved messageschrome-devtools take_screenshot 1 # Take a screenshot of the page viewportchrome-devtools take_screenshot 1 --fullPage true --format "jpeg" --quality 80 # Take a full page screenshot as JPEG with qualitychrome-devtools take_screenshot 1 --uid "id" --filePath "s.png" # Take a screenshot of an elementchrome-devtools take_snapshot 1 # Take a text snapshot of the page from the a11y treechrome-devtools take_snapshot 1 --verbose true --filePath "s.txt" # Take a verbose snapshot and save to file

chrome-devtools list_extensions # Lists all the Chrome extensions installed in the browserchrome-devtools install_extension "/path/to/extension" # Installs a Chrome extension from the given pathchrome-devtools uninstall_extension "extension_id" # Uninstalls a Chrome extension by its IDchrome-devtools reload_extension "extension_id" # Reloads an unpacked Chrome extension by its IDchrome-devtools trigger_extension_action "extension_id" # Triggers the default action of an extension by its ID

chrome-devtools install_pwa "https://example.com/" # Install PWA by manifest ID or URLchrome-devtools launch_pwa "https://example.com/" # Launch installed PWAchrome-devtools get_os_app_state "https://example.com/" # Get OS app installation statechrome-devtools uninstall_pwa "https://example.com/" # Uninstall PWA and close windows

chrome-devtools click_at 1 100 200 # Clicks at the provided coordinates on page 1 (requires --experimentalVision=true)chrome-devtools screencast_start 1 --filePath "screen.mp4" # Starts a screencast recording on page 1 (requires --experimentalScreencast=true and ffmpeg)chrome-devtools screencast_stop 1 # Stops the active screencast on page 1chrome-devtools list_webmcp_tools 1 # List all WebMCP tools on page 1 (requires --categoryExperimentalWebmcp=true)chrome-devtools execute_webmcp_tool 1 "tool_name" --input '{"arg":"val"}' # Execute a WebMCP tool on page 1 (requires --categoryExperimentalWebmcp=true)chrome-devtools list_3p_developer_tools 1 # List third-party developer tools on page 1 (requires --categoryExperimentalThirdParty=true)chrome-devtools execute_3p_developer_tool 1 "tool_name" --params '{"arg":"val"}' # Execute third-party developer tool on page 1 (requires --categoryExperimentalThirdParty=true)

chrome-devtools start   # Start or restart chrome-devtools-mcpchrome-devtools start --headless=false # Start with visible browser windowchrome-devtools status  # Checks if chrome-devtools-mcp is runningchrome-devtools stop    # Stop chrome-devtools-mcp if any