CloakBrowser: The Stealth Chromium That Passes Every Bot Detection Test
Source-level fingerprint patching makes CloakBrowser undetectable — a drop-in Playwright replacement scoring 30/30 on bot detection tests. Here's what it can do.
Bot detection is an arms race — and stealth plugins keep losing it. Every popular "undetected" library patches your browser's JavaScript APIs at runtime, but detection engines have learned to spot those patches. CloakBrowser takes a fundamentally different approach: it modifies Chromium at the source-code level, so every fingerprint surface is genuinely consistent and undetectable.
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View CloakBrowser Tool Page →Why source-level patching wins
Traditional stealth tools override navigator, canvas, and WebGL from JavaScript. Detection services like FingerprintJS and CreepJS compare those values against real browser distributions — and they can often detect the override itself. CloakBrowser instead patches the C++ and rendering internals of Chromium, so the browser reports hardware-consistent values natively. The result: 30/30 bot detection tests passed, including reCAPTCHA v3 scoring and Cloudflare Turnstile.
Key capabilities
| Capability | Details |
|---|---|
| Playwright drop-in | Reuse existing scripts — same API, no rewrites |
| Fingerprint consistency | Canvas, WebGL, fonts, audio, navigator patched at source |
| Detection test scores | browserscan, FingerprintJS, reCAPTCHA v3, Turnstile all pass |
| Licensing | MIT — free for commercial use |
This makes CloakBrowser ideal for AI agents that browse the web, large-scale scraping pipelines, ad verification, and QA automation where stealth is a hard requirement rather than a nice-to-have.
🚀 Ready to run CloakBrowser?
Get the Docker setup and system requirements on the tool page.
View CloakBrowser Tool Page →