Playwright vs Selenium: Which is Better for CAPTCHA Automation?

Choosing between Playwright and Selenium depends on your stack, team, and automation goals. Both solve CAPTCHAs with DeathByCaptcha, but they differ in speed, reliability, and developer experience.

Performance

Playwright uses a single browser context per test with multiplexed connections. Selenium creates a new WebDriver session for each test. In headless mode, Playwright is 30-50% faster for page navigation and DOM interaction.

Reliability

Playwright auto-waits for elements before interacting. Selenium requires explicit waits (WebDriverWait). This means fewer flaky tests with Playwright when CAPTCHAs appear at unpredictable times.

Browser Support

Language Support

Selenium supports Java, Python, C#, Ruby, and JavaScript. Playwright supports Python, Node.js, C#, and Java. If your team uses Ruby, Selenium is the only option.

CAPTCHA-Specific Differences

• Token injection: Both use page.evaluate() to inject tokens. Identical approach.
• iframe handling: Playwright handles iframes natively. Selenium requires switch_to.frame().
• Detection: Both can be detected by advanced anti-bot systems. Playwright has better stealth options with playwright-stealth.
• Headless detection: Both detect headless mode. Playwright has fewer fingerprint leaks.

When to Use Playwright

• New projects with no existing Selenium dependency.
• Speed is critical (high-throughput scraping).
• Cross-browser testing with WebKit support.
• Modern async/await patterns preferred.

When to Use Selenium

• Existing codebase already uses Selenium WebDriver.
• Team expertise is Java/Selenium.
• Need Selenium Grid, BrowserStack, or Sauce Labs integration.
• Ruby support required.

CAPTCHA Solving Code Comparison

The DeathByCaptcha integration is nearly identical. The only differences are the client library imports and async patterns:

# Playwright Python
from playwright.sync_api import sync_playwright
import deathbycaptcha

client = deathbycaptcha.SocketClient(username, password)
with sync_playwright() as p:
    browser = p.chromium.launch(headless=True)
    page = browser.new_page()
    # ... solve and inject token
    browser.close()

# Selenium Python
from selenium import webdriver
import deathbycaptcha

client = deathbycaptcha.SocketClient(username, password)
driver = webdriver.Chrome()
driver.get(page_url)
# ... solve and inject token
driver.quit()

Both approaches take the same number of lines. The CAPTCHA solving logic is identical. Choose based on your browser automation needs, not the CAPTCHA integration.

For API details, see the API reference.