Stealth Chromium that passes every bot detection test.

[CEO]

Me thinking 🤔 : WTF instead of using it, start an anti detection browser biz 😉

Not a patched config. Not a JS injection. A real Chromium binary with fingerprints modified at the C++ source level. Antibot systems score it as a normal browser — because it is a normal browser.

Drop-in Playwright/Puppeteer replacement for Python and JavaScript. Same API, same code. 3 lines of code, 30 seconds to unblock.

Others charge $49–299/month for this. CloakBrowser is free.

Repo. GitHub - CloakHQ/CloakBrowser: Stealth Chromium that passes every bot detection test. Drop-in Playwright replacement with source-level fingerprint patches. 30/30 tests passed.

Website. CloakBrowser — Stealth Chromium for Browser Automation

 

[Columbus]

Drop-in Playwright/Puppeteer replacement

Interesting, another stealth browser. They still use playwright. Every stealth/multi-login browser uses playwright or puppeteer.
They just modify some flags😁.
Anyways there will always be ways to bypass antibot systems😁.

 

[CEO]

Interesting, another stealth browser. They still use playwright. Every stealth/multi-login browser uses playwright or puppeteer.
They just modify some flags😁.
Anyways there will always be ways to bypass antibot systems😁.
View attachment 883

What matter is the source code is public open available.

They support both : Puppeteer & Playwright. FAQ they mentioned them.

They support Python:

from cloakbrowser import launch

browser = launch()
page = browser.new_page()
page.goto("https://protected-site.com") # no more blocks
browser.close()

JavaScript (Playwright):

import { launch } from 'cloakbrowser';

const browser = await launch();
const page = await browser.newPage();
await page.goto('https://protected-site.com');
await browser.close();

Also works with Puppeteer: import { launch } from 'cloakbrowser/puppeteer

Why CloakBrowser?

Config-level patches break — playwright-stealth, undetected-chromedriver, and puppeteer-extra inject JavaScript or tweak flags. Every Chrome update breaks them. Antibot systems detect the patches themselves.
CloakBrowser patches Chromium source code — fingerprints are modified at the C++ level, compiled into the binary. Detection sites see a real browser because it is a real browser.
Source-level stealth — C++ patches handle fingerprints (GPU, screen, UA, hardware reporting) at the binary level. No JavaScript injection, no config-level hacks. Most stealth tools only patch at the surface.
Same behavior everywhere — works identically local, in Docker, and on VPS. No environment-specific patches or config needed.
Works with AI agents and automation frameworks — drop-in stealth for browser-use, Crawl4AI, Scrapling, Stagehand, LangChain, Selenium, and more. See integrations.
CloakBrowser doesn't solve CAPTCHAs — it prevents them from appearing. No CAPTCHA-solving services, no proxy rotation built in — bring your own proxies, use the Playwright API you already know.

 

[Columbus]

source code is public open available.

nope, they use this as marketing.
They did not open source everything. The patches are closed source. Read BINARY-LICENSE.md

 

[CEO]

nope, they use this as marketing.
They did not open source everything. The patches are closed source. Read BINARY-LICENSE.md

I know, you know also, no (BH) from Russia, China, North Korea will respect that license.

 

[Columbus]

I know, you know also, no (BH) from Russia, China, North Korea will respect that license.

It’s not about the license. My point was that it is not fully open source. That file contains some information about the missing open source code. 😏

 

[CEO]

It’s not about the license. My point was that it is not fully open source. That file contains some information about the missing open source code. 😏

The reason I share this tool is to be free from the limitations of cloud browsers and to maintain privacy in the first place, I accept 80% open source no problem at all.