JSONViewer is a free browser extension developed by opponic that allows users to easily format and view JSON documents. It is available on the Chrome platform as an add-on and tool in the Browsers category. With JSONViewer, users can conveniently view and analyze JSON data without the need for additional software or tools.

One of the main features of JSONViewer is its ability to format multiple JSON documents in one window, depending on the screen width. This makes it easy for users to compare and analyze JSON data side by side, up to a maximum of six documents. The extension intelligently adjusts the layout to ensure optimal visibility and readability.

With its user-friendly interface and convenient features, JSONViewer is a valuable tool for developers, data analysts, and anyone working with JSON data. It simplifies the process of formatting and viewing JSON documents, making it a must-have extension for anyone working with JSON data on the Chrome platform and other supported browsers.