ArcPanel is a Chrome add-on designed to streamline various browser actions by providing a page-aware side panel. This tool allows users to perform numerous tasks without leaving the current tab, enhancing productivity for developers and everyday users alike. Key features include formatting JSON, inspecting JWTs, testing regex patterns, and encoding or decoding URLs and Base64. Additionally, users can pick colors directly from the webpage, count words, and check reading time from selected text.

The application also offers convenient functionalities like reopening clipboard history, capturing screenshot frames, and building GIFs. ArcPanel operates with a local-first approach, ensuring that core actions can be performed without requiring an account. By utilizing the context of the active tab and selected text, it provides a seamless experience for users to execute actions efficiently.