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Chrome Flags Reference

Chrome command line switches and startup flags for automation, headless mode, and debugging.

--diagnostics

What does --diagnostics do?

Triggers a plethora of diagnostic modes.

Usage

CLILaunch Chrome with --diagnostics using CLI

chrome --diagnostics

PuppeteerLaunch Chrome with --diagnostics using Puppeteer

const browser = await puppeteer.launch({
  args: ['--diagnostics']
});

PlaywrightLaunch Chrome with --diagnostics using Playwright

const browser = await chromium.launch({
  args: ['--diagnostics']
});

SeleniumLaunch Chrome with --diagnostics using Selenium

from selenium import webdriver

options = webdriver.ChromeOptions()
options.add_argument('--diagnostics')

driver = webdriver.Chrome(options=options)
View source: chrome_switches.cc
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