The Missing JSON Inspector
Extension Delisted
This extension is no longer available in the official store. Delisted on 2025-09-15.
Inspect JSON in your browser.
Inspect JSON documents the way you normally inspect JavaScript objects in the console. Without any ugly decorations or useless features. This simple extension detects when you're viewing JSON documents and allows you to switch between the original document and the JSON inspector via the page action icon that lives in your address bar. The end result is very similar to what you get when viewing XML documents in your browser.
Features (most are configurable):
* Automatically switches to the JSON Inspector
* Keyboard navigation of the JSON tree
* Expand/collapse parts of the JSON tree with mouse or keyboard (hold SHIFT key to include all the siblings, or ALT key to include all the children)
* Sorts object keys in either direction, but can also show data as-is
* Exports JSON data into the content window so that it can be used directly in the console (window.$json by default)
Don't have a URL handy? Give these a try:
EchoNest API: http://developer.echonest.com/api/v4/artist/search?api_key=N6E4NIOVYMTHNDM8J&format=json&name=timewarp&results=10
Twitter API: http://twitter.com/statuses/public_timeline.json
Latest reviews
Being given JS access to a JSON document you are viewing is very helpful with window.$json. Would love it if it somehow bound the selected part of the JSON structure to a variable on window. like window.$0 or window.$json0 or something like that.
Bravo on keyboard support and multi-collapse. Fast and simple to use
It displays json nicely like xml. But if the json file is opened locally on the computer, then the extension does not detect it and json still looks like a text file. I would have to put it on localhost...
I've tried all the popular json extensions and like this one the best. It's simple, clear, and fast. My favourite feature is that it shows the number of elements in an array which is invaluable while debugging.
very awesome extension. i love it
Hi, I am interested in acquiring your extension "The Missing JSON Inspector". Please contact me at: [email protected]
No settings. Can't copy JSON parts.
Does not work with json data uris data:application/json;base64 ....
Works, but input is a little wonky.
the only extension I found could show size of an array
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really nice for development :D
Great that I can switch between JSON formatted and the normal uglified string.
THis is the only one that worked for me! Speed improvements and some more options would be great (like a button to collapse all etc)
Єдини json-viewer який адекватно працю з силками без розширення .json.
If you are searching for an extension that is fast and simple, this is the one. It outperforms its competition by far. Even with tens of thousands of objects in the JSON file, it still performs just as good as the built in XML viewer of Chrome.
Unwanted installations.
I love that unlike other JSON viewers it scrolls smoothly even for large documents (~2mb). But it takes longer to load them and while loading it blocks the UI in other tabs. And is slightly less readable. But it is better overall.
挺好用的
Przetestowałem jeszcze JSON Formatter i JSONView i oba są znacznie lepsze od tego. Z tych trzech najlepszy wydaje mi sie JSON Formatter, aczkolwiek JSONViewer tylko nieznacznie mu ustępuje. Natomiast ten "The Missing JSON Inspector" jest zdecydowanie najgorszy.
I liked it because it automatically detects a JSON document; in other words it doesn't require the document to have .json extension or a text/json content type header. On the other hand, it doesn't always parse/display the JSON correctly, for example a string containing an XML document.
This is a brilliant tool for any programmer working with JSON web services! BUT only one problem: If you select None as the sorting option, it still sorts the object keys in Ascending order rather than the original order in the original source.
This is an essential tool for anyone working with json or rest services. Feature wishlist: 1. Add option (or key/combo) to auto forward when clicking on embedded link. 2. Control over appearance (colors, arrows, etc). Thanks!
