Thespis

Make Playwright automation undetectable

Note: This project is currently in beta. Features are stable but may change based on feedback.

Why Use Thespis?

Websites detect Playwright because of navigator.webdriver and other automation signals.

Results: Tested against CreepJS:

Quick Start

Basic Example (Sync)

from playwright.sync_api import sync_playwright
from thespis import stealth_sync

with sync_playwright() as p:
    # Launch browser with special flag (REQUIRED!)
    browser = p.chromium.launch(
        headless=False,
        args=['--disable-blink-features=AutomationControlled']
    )

    # Create page and apply stealth
    page = browser.new_page()
    stealth_sync(page)

    page.goto("https://bot.sannysoft.com")
    page.screenshot(path="test.png")

    browser.close()

Important: Required Flag

This flag is CRITICAL:

args=['--disable-blink-features=AutomationControlled']

Without it, navigator.webdriver stays true and detection fails.

Docker (Production)

For servers without displays, use Docker with Xvfb:

# Build image
docker-compose build

# Run test script
docker-compose run --rm thespis

# Run your own script
docker-compose run --rm thespis python your_script.py

Why Docker?

• Runs headless=False on servers (31% detection score)
• No visible windows (uses virtual display)

Recommended Full Configuration

# Launch browser
browser = p.chromium.launch(
    headless=False,
    args=[
        '--disable-blink-features=AutomationControlled',
        '--disable-dev-shm-usage',
        '--no-sandbox',
    ]
)

# Create realistic context
context = browser.new_context(
    viewport={'width': 1366, 'height': 768},
    user_agent='Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36',
    locale='en-US',
    timezone_id='America/New_York',
)

page = context.new_page()
stealth_sync(page)