JSON Viewer

JSON (short for JavaScript Object Notation) is a popular format that makes use of typical text to transmit data objects. Even though the text is very much human-readable, viewing JSON files without a specialized viewer can put quite a strain on your eyes.

Generically named, JSON Viewer is a lightweight yet surprisingly customizable Google Chrome extension that makes it as straightforward as possible for you to view and print JSON and JSONP files.

The first thing you should know about this extension is the fact that is capable of working with both online and local JSON files but, please note, that you are required to manually enable this feature from the extension's Options page.

Other than that, it should work right out-of-the-box, without any type of intervention on your behalf when it automatically detects JSON syntax, regardless of the URL. Of course, there's a useful syntax highlighter and also twenty-seven built-in themes that are bound to make you appreciated this small extension even more.

Extra run-of-the-mill features include collapsible nodes, clickable URLs and two view modes, RAW and a highlighted version. Besides its looks, you can customize almost everything else.  For instance, you can change the tab size, set up the max size of a JSON file that will be highlighted, include a header with timestamp and URL, sort the JSON by keys and even disable the auto highlighter.

To sum it all up, JSON Viewer is a lightweight and intuitive extension that offers you a convenient way to view and print JSON files, without having to leave Chrome's window and without having to resort to other standalone apps.

The best thing about this extension is the fact that it can be used without any problems by even the most novice of users and, if need be, it can be tweaked to a great extent to suit the needs of more advanced ones, as well.