Atool is a versatile Chrome extension designed for developers, featuring a robust WebSocket packet capture and debugging tool at its core. The extension consolidates essential development utilities into a streamlined three-column panel, allowing users to switch seamlessly between tools without navigating multiple web interfaces. Key functionalities include SQL generation and retrieval, QR code creation, JSON formatting, and date/time conversion, all geared towards enhancing productivity for developers across various fields.

The WebSocket capabilities of Atool enable users to intercept all WebSocket connections, including dynamically created ones. It supports gzip and deflate decompression, offers multiple detail views, and allows for active connections directly from the panel. With its dual display modes—integrated within Chrome's DevTools or as a fixed sidebar—Atool caters to frontend and backend developers, protocol analysts, and anyone needing frequent access to development tools. Privacy is prioritized, as all operations run locally, ensuring user data remains secure.