By Simon B. Støvring

  • Category: Developer Tools
  • Release Date: 2019-02-02
  • Current Version: 1.4.2
  • Adult Rating: 4+
  • File Size: 28.43 MB
  • Developer: Simon B. Støvring
  • Compatibility: Requires iOS 13.0 or later.
Score: 4.49544
From 329 Ratings


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.



  • I Am No Longer Afraid of JSON

    By NeoYokel
    All of Simon’s apps are genius and wholly unique, but Jayson will always have a special place in mine own heart as the single application which finally killed my phobia of JSON, in general. It is by far the most elegant and intelligent means of manipulating JSON dictionaries I’ve ever seen on any platform. I’ve worked with both the iOS and macOS apps, now, and both are - dare I say it - a genuine joy to use. BUY!

    By Ttammirato
    By far the worst customer service I’ve ever had. I got the app and even paid the Money for the upgraded service and I can’t use it at all because I genuinely don’t understand it and I have messaged the app several times and I have messaged the creator several times and not one reply for days! I don’t understand how you pay for a app and can’t get any help. I would give zero stars
  • Jayson is Amazing!

    By superdude4248
    This app is a lifesaver. You do not know how many times i’ve needed to edit JSON tables and other sorts of things. Thank you so much for making this app. Wow.
  • Good

    By ..??12?
  • Perfect

    By Atoyelohaneeze
    Exactly what I needed, perfectly done. Thank you so much for making this and giving it out for free; really fulfills the potential of software and humanity.
  • I like it so far

    By RealityFacade
    Can you view two different arrays on the same split? I feel like you should be able to… side by side is enabled in landscape… but it seems again only for the same array. You can drag and drop one though to a different position so it’s almost there, assuming I’m not just missing how to do it.
  • Worthless.

    By Borat 420
    Terrible UI, lacks any features that would actually make it useful. It’s easier to just work with JSON in a text editor.
  • Can’t find search

    By eggehjfdgfdhgdefhg
  • The app name

    By Melissa Jayson
    Hey this app has my last name (Jayson) yup I’m loving it 😊
  • Comments

    By krispyi2
    Great, only problem is that it doesn’t know how to read comments