Jayson is a simple yet powerful JSON viewer with Siri Shortcuts, Share Sheet Actions and URL schemes.

Features include:

- Browse JSON files stored on your device.
- Toggle between viewing JSON in a table or as syntax highlighted text.
- Tabbed interface to quickly switch between two files or different objects in a single file.
- Use multiple splits to easily compare JSON objects in a single file or across multiple files.
- Parse text or the contents of a URL in your clipboard to JSON.
- Siri Shortcuts that parse JSON from a text or a link stored in your clipboard. The shortcuts can open the JSON in the app or preview it in an interactive notification.
- Share Sheet Actions for parsing JSON from plain text, loading JSON from a link and importing files as JSON.
- URL schemes for parsing a text, loading the contents of a link as JSON or parsing the contents of your clipboard.
- Store imported files locally, in iCloud or don't store them on disk at all.
- Short videos that help you get started with the app.
- Highlight a key from a child object of an array to quickly get an overview of the array.

Features that require the "Unlock Everything" in-app purchase:

- Switch between light and dark themes.
- Changing the visual appearance, including the app icon, accent color and type icons.
- Opening more than two tabs.

What’s New

Version 1.1.1

- New: On first launch, new users are now presented with a sample JSON file in order to quickly get started with the app.
- New: The value of highlighted keys can now be copied by long pressing an item in an array.
- Bugfix: Fixed issue where floating point numbers were sometimes displayed with an incorrect value.

Ratings and Reviews

4.9 out of 5
36 Ratings
36 Ratings
newmans99 ,

Would be even better with XML support

I really like the JSON capabilities and see a lot of potential use especially with Shortcut support.

However, I tend to switch between XML and JSON projects a lot so it would be great if this supported both format types.

Long Walks on the Beach ,

I like it but....

I really want a JSON viewer that also lets me edit/add to it. Maybe add that as a feature and with the full version allow users to export JSON. That way, we can see if it's a reasonable workflow to use this app and pay for it if we like it?

keveridge.reddit ,

Super helpful, great value

The shortcuts support and url scheme is especially helpful. Can't recommend enough.

Hopefully the developer will also write a JSON editor in future.


Simon Stovring
20 MB

Requires iOS 12.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Danish

Age Rating
Rated 4+
© 2019 Simon B. Støvring
In-App Purchases
  1. Unlock Everything $1.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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