OK JSON - Offline & Private 4+

JSON Formatter, Viewer, Editor

铁山 冯

    • 3.9 • 7 Ratings
    • Free
    • Offers In-App Purchases



A simple and beautiful JSON formatter.

Native app built for Intel and M1 Mac machines.

Respects your privacy and never collect any of your personal data.

OK JSON is a JSON formatter and viewer, well suited for developers who need to work with JSON frequently, especially web developers. With OK JSON, you can view JSON in a tree view with beautiful syntax highlight.

OK JSON supports opening JSON in a variety of ways.

You can paste JSON from the clipboard, drag and drop JSON files, download JSON via URL, or even get JSON responses directly via the cURL command. You can also open selected JSON string through macOS's services.

All of these ways are also integrated into your favorite productivity apps like Alfred and LaunchBar via URL Scheme okjson://paste.

In addition to formatting and viewing, OK JSON supports many more related operations.

You can search and locate nodes in tree view, as well as query the contents of a JSON document via JSONPath, and even compare the differences between two JSON documents via JSON Patch.

OK JSON is a native Mac App, which means it comes with many common Mac App features. For example, you can preview the content of the currently selected node by pressing the spacebar. If the value of this node is a timestamp or a color, OK JSON can also display the formatted time or the specific color in the preview.

OK JSON offers many settings to make it fit your preferences. Hide dock icon, menu bar icon, data type icons or data type column, adjust toolbar styles, and the list goes on. The editor is also fully configurable. Line number, indent size and font…

If your development work requires working with JSON, then OK JSON should serve you well.

What’s New

Version 1.6.2

- New App Icon.
- Remove some infrequently used settings.
- Fix some minor bugs.

If you enjoy OK JSON, please consider leaving a review in App Store so that more people can know us and we can continue to make the app better.

Ratings and Reviews

3.9 out of 5
7 Ratings

7 Ratings

Dustin.v01d ,

Super useful

JSON makes my head hurt and this app has already been extremely helpful to make sense of it. It's simple to use and has an esthetically pleasing UI. Having it on my own machine is super nice as well.

Thanks for this!

foosball_p ,

Great app with attention to details

This is an excellent app with a lot of anntetion to details. For example a service that allows any text to be sent to OK JSON.

I miss having JSON Validation as well as display the content size in bytes / KB.

Missing Raycast support like DevUtils supports. Please consider adding.

Edit: Got the RayCast Integration working, thanks! Updated to 5 star. Still missing the JSON Validation feature which IntelliJ supports

Developer Response ,

You can paste in OK JSON with Raycast. Just go to main menu -> Help -> Integrations. You can contact me via email if this is not what you need.

SayYesToAwesome ,

Exactly what the Dr. Ordered

I wanted a simple JSON reader that is local to my machine and will not push any sensitive content to the cloud. It read a chunky 6MB JSON file with no issues.

App Privacy

The developer, 铁山 冯, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Purchases

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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