All-in-one Browser Automation Framework:
Web Crawling / Testing / Scraping / Stealth
🚀 Start | 🏰 Features | 🎛️ Options | 📚 Examples | 💻 Scripts | 🗾 Locale
📗 API | 📘 Stealth API | 🔠 DesignPatterns | 🔴 Recorder | 📊 Dashboard
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👁️ How | 🚝 Migration | 🎭 Stealthy Playwright | 🛂 MasterQA | 🚎 Tours
🤖 CI/CD | 🟨 JSMgr | 🌏 Translator | 🎞️ Presenter | 🖼️ Visual | 🗂️ CPlans
pip install seleniumbase for the main framework.pip install playwright for the Playwright integration.📝 Here's a Python example that uses Pure CDP Mode (sb_cdp):
(It navigates to Browserscan where it bypasses bot-detection.)
from seleniumbase import sb_cdp
sb = sb_cdp.Chrome()
sb.goto("https://browserscan.net/bot-detection")
sb.sleep(3)
sb.quit()

(All BrowserScan bot-detection tests passed successfully.)
🎭 Here's an example script that uses Stealthy Playwright Mode:
(Playwright connects to a stealthy SeleniumBase browser session.)
from playwright.sync_api import sync_playwright
from seleniumbase import sb_cdp
sb = sb_cdp.Chrome(guest=True)
endpoint_url = sb.get_endpoint_url()
with sync_playwright() as p:
browser = p.chromium.connect_over_cdp(endpoint_url)
page = browser.contexts[0].pages[0]
page.goto("https://bot.sannysoft.com/")
page.wait_for_timeout(500)

(All Sannysoft bot-detection tests passed successfully.)
📝 The Browserscan example can be expanded into a test demo:
(Assertions added and elements highlighted with JavaScript.)
from seleniumbase import sb_cdp
sb = sb_cdp.Chrome(locale="en", ad_block=True)
sb.goto("https://browserscan.net/bot-detection")
sb.flash("Test Results", duration=1.5, pause=0.5)
sb.assert_element('strong:contains("Normal")')
print("Bot Not Detected")
sb.flash('strong:contains("Normal")', pause=1)
sb.quit()
📝 This example scrapes Hacker News listings:
from seleniumbase import sb_cdp
sb = sb_cdp.Chrome()
sb.goto("https://news.ycombinator.com/submitted?id=seleniumbase")
elements = sb.find_elements("span.titleline > a")
for element in elements:
print("* " + element.text)
🐙 Stealthy CDP Mode examples are located in ./examples/cdp_mode/.
🎭 Stealthy Playwright examples are located in ./examples/cdp_mode/playwright/.

(For maximum stealth, use CDP Mode, which includes Stealthy Playwright Mode.)
💡 You can set the Chromium browser to use via command line parameters:
python SCRIPT.py --chromium # Use the unbranded Chromium browser
python SCRIPT.py --cft # Use Chrome-for-testing
python SCRIPT.py --edge # Use Microsoft Edge
python SCRIPT.py --brave # Use Brave browser
Google Chrome is the default browser. Only unbranded Chromium and Chrome-for-Testing get installed automatically if not already installed.
The Chromium browser can also be set via method args, eg: cft=True, use_chromium=True, browser="edge", browser="brave", etc. Eg:
sb = sb_cdp.Chrome(use_chromium=True)
📝 This example saves Google Search results with UC + CDP Mode:
(Results are saved as PDF, HTML, and PNG files to ./latest_logs/)
from seleniumbase import SB
with SB(uc=True, test=True) as sb:
url = "https://google.com/ncr"
sb.activate_cdp_mode(url)
sb.click_if_visible('button:contains("Accept all")')
sb.type('[name="q"]', "SeleniumBase GitHub page")
sb.click('[value="Google Search"]')
sb.sleep(4) # The "AI Overview" sometimes loads
print(sb.get_page_title())
sb.save_as_pdf_to_logs()
sb.save_page_source_to_logs()
sb.save_screenshot_to_logs()
print("Logs have been saved to: ./latest_logs/")
📝 This example bypasses Cloudflare's challenge page with UC + CDP Mode:
(If the Turnstile isn't bypassed automatically, sb.solve_captcha() handles it.)
from seleniumbase import SB
with SB(uc=True, test=True, locale="en") as sb:
url = "https://gitlab.com/users/sign_in"
sb.activate_cdp_mode(url)
sb.sleep(2)
sb.solve_captcha()
# (The rest is for testing and demo purposes)
sb.assert_text("Username", '[for="user_login"]', timeout=3)
sb.assert_element('label[for="user_login"]')
sb.highlight('button:contains("Sign in")')
sb.highlight('h1:contains("GitLab")')
sb.post_message("SeleniumBase wasn't detected", duration=4)

(Successfully bypassed bot-detection on a Cloudflare challenge page.)
💡 sb.solve_captcha() handles CAPTCHAs that aren't bypassed automatically.
(If no CAPTCHA is present on the current page, then nothing happens.)
📝 This example handles a CAPTCHA page with Pure CDP Mode:
from seleniumbase import sb_cdp
sb = sb_cdp.Chrome(incognito=True)
sb.goto("https://gitlab.com/users/sign_in")
sb.sleep(2)
sb.solve_captcha()
sb.highlight('h1:contains("GitLab")')
sb.highlight('button:contains("Sign in")')
sb.quit()
pytest:📚 The SeleniumBase/examples/ folder includes over 150 ready-to-run examples of E2E testing. Examples that start with test_ or end with _test.py/_tests.py run with pytest. Other examples run directly with raw python (those generally start with raw_ to avoid confusion).
📝 This example tests an e-commerce site with pytest:
```python from seleniumbase import BaseCase BaseCase.main(name, file) # Call pytest
class MyTestClass(BaseCase): def test_swag_labs(self): self.goto("https://www.saucedemo.com") self.type("#user-name", "standard_user") self.type("#password", "secret_sauce\n") self.assert_element("div.inventory_list") self.click('button[name*="backpack"]') self.click("#shopping_cart_container a") self.assert_text("Backpack", "div.cart_item") self.click("button#checkout") self.type("input#first-name", "SeleniumBase") self.type("input#last-name", "Automation") self.type("input#postal-code", "77
$ claude mcp add SeleniumBase \
-- python -m otcore.mcp_server <graph>