JSON Master - Advanced Formatter is a versatile Chrome extension tailored for developers to streamline the viewing and analysis of JSON data and Java object string representations. By simply right-clicking selected text, users can access a floating window that presents the formatted content with syntax highlighting and collapsible nodes, enhancing readability and usability. The extension supports various toString() formats, including Lombok and Apache ToStringBuilder, ensuring compatibility with diverse coding practices.

Key features include a customizable interface with dark and light theme support, resizable and draggable floating windows, and the ability to open multiple windows for comparative analysis. Additional functionalities such as auto word-wrap, compression options, and one-click copy make it a comprehensive tool for efficiently managing JSON structures, even when they are incomplete. This extension is particularly beneficial for full-stack developers and backend engineers who frequently handle JSON data.