Throw Catcher

Extension to track JS Errors and HTTP Requests

Throw Catcher – Monitor Website Activity in Real Time Throw Catcher is a lightweight Chrome extension designed to help developers and analysts understand what’s happening behind the scenes of any webpage. With a simple and intuitive interface, Throw Catcher tracks and displays key runtime metrics in real time: Network Requests – Monitor how many HTTP requests the page performs DOM Mutations – Track changes in the page structure dynamically JavaScript Errors – Count uncaught exceptions and runtime errors In addition, Throw Catcher allows you to export a snapshot of the collected data as a PNG image, making it easy to share insights, report issues, or document page behavior. Key Features Real-time counters for requests, DOM updates, and JS errors Export results as a PNG image Minimal and non-intrusive design Zero configuration required Lightweight and fast Why Throw Catcher? Modern websites are dynamic and often unpredictable. Throw Catcher helps you quickly identify abnormal behavior, excessive DOM updates, or hidden JavaScript errors — all at a glance. With built-in PNG export, you can quickly capture and share what you find with your team or clients. Perfect for developers, QA engineers, and anyone working with modern web applications.