The JSON viewer in Firefox

At the time of writing, Chrome doesn’t have a native way to view JSON data in a pretty format. You have to install a third-party extension like JSONView. But Firefox, my browser of choice, has its own JSON viewer baked in!

All you need to do is open a JSON file directly in the browser. It doesn’t matter if it’s a local file or one you’re viewing online. If it is online, though, you get an extra Headers tab which shows the request and response headers.

Here’s the JSON tab:

The JSON tab in Firefox's JSON viwer

The Raw Data tab:

The Raw Data tab in Firefox's JSON viwer

And finally, the Headers tab:

The Headers tab in Firefox's JSON viwer

I used JSONPlaceholder in the screenshots above.

Why not download Firefox today?

If you have questions, feedback, or any other suggestions, please do email me. I'd love to hear from you!