CloakBrowser Tutorial: Run Undetected Playwright Automation with Docker

You have a Playwright scraper that keeps getting blocked. Or an AI agent that gets challenged by Turnstile every few pages. The fastest fix is switching to CloakBrowser — a drop-in Playwright replacement that patches Chromium at the source level and passes 30/30 bot detection tests. Here's a practical walkthrough.

Step 1: Launch with Docker

Deploy the official image in seconds. With 114K+ pulls, it's battle-tested:

docker run -d --name cloakbrowser -p 8080:8080 cloakhq/cloakbrowser:latest

Or use the ready-made compose file from the Run This Ai tool page, which wires up ports and a persistent data volume automatically.

Step 2: Point your Playwright scripts at it

CloakBrowser exposes the same Playwright API. Change the browser launch line — that's usually the only edit:

from playwright.sync_api import sync_playwright

with sync_playwright() as p:
    browser = p.chromium.connect_over_cdp("http://localhost:8080")
    page = browser.new_page()
    page.goto("https://example.com")

Step 3: Verify the stealth score

Run the detection battery to confirm: browserscan shows a clean profile, FingerprintJS reports no mismatched fingerprints, and reCAPTCHA v3 returns human-level scores around 0.9. Cloudflare Turnstile completes non-interactively.

Real-world uses

AI agents that need persistent, undetected browsing; price and inventory scrapers running at scale; ad verification platforms that must look like real users; and QA teams testing anti-bot flows. Because it's MIT-licensed, there are no per-seat costs — just the compute you already pay for.