Seven JSON Viewer is a free Chrome add-on developed by Reez. It falls under the category of Browsers and is specifically listed under the Add-ons & Tools subcategory. This minimal JSON viewer provides users with a convenient way to view and navigate JSON files, with the added support for JSON Path.

The main features of Seven JSON Viewer are as follows:

1. Syntax Highlighting: The viewer highlights the syntax of the JSON file, making it easier to read and understand.

2. Collapsible Tree: The JSON file is presented in a collapsible tree structure, allowing users to expand and collapse sections for improved readability.

3. Dark Theme: The viewer offers a dark themed interface, which can be easier on the eyes for prolonged usage.

4. Realtime JSON Path Support: Users can utilize JSON Path expressions to navigate and extract specific data from the JSON file.

5. Multiple Themes: The viewer provides users with the option to choose from multiple themes, allowing for customization based on personal preferences.

Please note that this extension may have conflicts with other JSON highlighters or beautifiers such as 'JSON Formatter', 'JSONView', and 'Pretty JSON'. It is recommended to disable those extensions before using Seven JSON Viewer for a better experience.

Overall, Seven JSON Viewer is a useful tool for developers and users working with JSON files, providing a minimalistic yet feature-rich viewing experience with JSON Path support.