Auto-detect captchas on any webpage and generate solver API payloads with the CapBypass browser extension.

Chrome Extension

The CapBypass Chrome extension scans any webpage in real-time, identifies captcha challenges, extracts their parameters, and generates ready-to-use API payloads - all from a convenient side panel.

Install from Chrome Web Store

Get CapBypass – Captcha Scanner - free, no account required.

Supported Captcha Types

Type	Detection Method
reCAPTCHA v2 / v2 Enterprise	DOM + main world
reCAPTCHA v3 / v3 Enterprise	DOM + main world
Cloudflare Turnstile	DOM + main world
AWS WAF	DOM + network monitoring
GeeTest v3 / v4	DOM + main world

How It Works

Install the Extension

Install from the Chrome Web Store and pin it to your toolbar.

Browse to Any Page

Navigate to a website that uses captcha protection. The extension scans automatically via DOM analysis, network monitoring, and main world script inspection.

Open the Side Panel

Click the extension icon to open the side panel. All detected captchas appear with their type, site key, and confidence level.

Copy the Payload

Expand any detection to see extracted properties and a ready-to-use API payload. Switch between JSON, Node.js, and Python formats. Click Copy and paste directly into your code.

Features

Real-time detection - DOM scanning, network request monitoring, and main world JavaScript inspection
One-click payloads - Generated in JSON, Node.js, and Python formats
Detection history - Each captcha event is logged with a timestamp, even multiple events of the same type
Proxy toggle - Switch between proxy and proxyless task types
Side panel UI - Non-intrusive sidebar that stays open while you browse
Settings - Configure your API key for pre-filled payloads

Detection Methods

The extension uses three layers of detection:

DOM scanning - Looks for captcha iframes, script tags, data attributes, and form elements
Network monitoring - Watches for requests to *.awswaf.com to detect AWS WAF challenges that aren't visible in the DOM
Main world inspection - Injects a script into the page's main world to check for global objects like grecaptcha, turnstile, and AwsWafIntegration

Example Output

When a reCAPTCHA v3 is detected, the extension generates a payload like:

{
  "clientKey": "YOUR_API_KEY",
  "task": {
    "type": "ReCaptchaV3TaskProxyLess",
    "websiteURL": "https://example.com/login",
    "websiteKey": "6LdHxf4SAAAAABRsPr...",
    "pageAction": "login"
  }
}

Use this payload directly with the CapBypass API to solve the captcha.

Chrome Extension

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