Jayson is a simple yet powerful JSON viewer and editor 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 files or different objects in a single file.
- Use multiple splits to easily compare JSON documents in a single file or across multiple files.
- Multiple windows on the iPad allows for even more options to browse and edit JSON documents.
- 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.
- Choose a location on your device to store imported files.
- Highlight a key from a child of an array to quickly get an overview.
- Short videos that help you get started with the app.

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 1.4

- New: Adds the Prettify JSON action to Shortcuts. It takes a dictionary, list or text as input and outputs a pretty JSON string.
- New: Integrates better with the document browser for creating new files. Files will now be created in the folder you're browsing.
- New: Adds +/- button in the keyboard when adding or editing a number value.
- Bugfix: Numbers written with scientific notation (e.g. 7e+16) could not be parsed when they contained a plus.
- Bugfix: Sometimes decimal numbers weren't displayed correctly.
- Bugfix: The Get File action in Shortcuts no longer requires the file extension in order to find the file.

Ratings and Reviews

4.7 out of 5
241 Ratings

241 Ratings

FifiTheBulldog ,

I love this app!

I’m a power user of Shortcuts and (more recently) Scriptable, and on many occasions I need to work with JSON responses from APIs. This app is a lifesaver. It completely takes the guesswork out of the process of figuring out what keys I need to use to retrieve the data I need. I don’t know what I would do without Jayson. Bravo!

Rgxyzzy ,

Using the heck out of this

I’ve been using the heck out of this lately so decided to go for the paid version even though I don’t particularly need the extra features. This app has saved me a ton of time. It’s great looking through the JSON on my iPad while coding on my MBP.

The28Ball ,

Great JSON Viewer, but would be better with editing capability

It would be nice to have editing capabilities in Jayson because the app is a beautiful way of visualizing JSON and the navigation makes it easy to traverse files, so it would definitely do a lot with editing.


Simon Stovring
19.6 MB

Requires iOS 13.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Danish

Age Rating
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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