2025-08-21
Where is the search option?
I cannot find a way to search in a file.
Updating
+5
#77 in Top Free Apps > Developer Tools
+35
#64 in Top Free iPad Apps > Developer Tools
iPhone Screenshots
iPad Screenshots
Description
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 in Version 1.4.2
Fixes an issue where the list of breadcrumbs weren't correctly updated after selecting a breadcrumb. This was also the root cause for a common crash.
Seller
Name
Simon Stovring
Information
Developer
Categories
Version
1.4.2
Size
29.8 MB
Game Center
No
VPP Device Licensing
Yes
Rating
Rated: 4+
Compatibility
iOS 13.0 or later
Devices
iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone SE (3rd generation), iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 16e, iPhone 17, iPhone 17Pro, iPhone 17ProMax, iPhone Air, iPad (5th Generation) Wi-Fi, iPad (5th Generation) Wi-Fi + Cellular, iPad (6th generation) Wi-Fi, iPad (6th generation) Wi-Fi + Cellular, iPad Pro, iPad Pro (Cellular), iPad Pro (9.7-inch), iPad Pro (9.7-inch) (Cellular), iPad Pro 12.9-inch (2nd generation), iPad Pro 12.9-inch (2nd generation) Wi-Fi + Cellular, iPad Pro (10.5-inch), iPad Pro (10.5-inch) Wi-Fi + Cellular, iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro 12.9-inch (3rd generation), iPad Pro 12.9-inch (3rd generation) Wi-Fi + Cellular, iPad Air, iPad Air (Cellular), iPad Air 2, iPad Air 2 (Cellular), iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular, iPad mini Retina, iPad mini Retina (Cellular), iPad mini 3, iPad mini 3 (Cellular), iPad mini 4, iPad mini 4 (Cellular), iPad mini (5th Generation), iPad mini (5th Generation) Wi-Fi + Cellular, iPad (7th generation) Wi-Fi + Cellular, iPad Pro 11-inch (2nd generation), iPad Pro 11-inch (2nd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (4th generation), iPad Pro 12.9-inch (4th generation) Wi-Fi + Cellular, iPad Air (4th Generation) (Wi-Fi), iPad Air (4th Generation) (Wi-Fi + Cellular), iPad (8th generation) Wi-Fi, iPad (8th generation) Wi-Fi + Cellular, iPad Pro 11-inch (3rd generation), iPad Pro 11-inch (3rd generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (5th Generation), iPad Pro 12.9-inch (5th Generation) Wi-Fi + Cellular, iPad (9th Generation), iPad (9th Generation) Wi-Fi + Cellular, iPad mini (6th Generation), iPad mini (6th Generation) Wi-Fi + Cellular, iPad Air (5th generation), iPad Air (5th generation) Wi-Fi + Cellular, iPad Pro 11-inch (4th generation), iPad Pro 11-inch (4th generation) Wi-Fi + Cellular, iPad Pro 12.9-inch (6th generation), iPad Pro 12.9-inch (6th generation) Wi-Fi + Cellular, iPad (10th generation), iPad (10th generation) Wi-Fi + Cellular, iPad Air 11-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi + Cellular, iPad Pro 11-inch (M4) Wi-Fi, iPad Pro 11-inch (M4) Wi-Fi + Cellular, iPad Pro 13-inch (M4) Wi-Fi, iPad Pro 13-inch (M4) Wi-Fi + Cellular, iPad mini (A17 Pro) Wi-Fi, iPad mini (A17 Pro) Wi-Fi + Cellular, iPad (A16) Wi-Fi, iPad (A16) Wi-Fi + Cellular, iPad Air 11-inch (M3) Wi-Fi, iPad Air 11-inch (M3) Wi-Fi + Cellular, iPad Air 13-inch (M3) Wi-Fi, iPad Air 13-inch (M3) Wi-Fi + Cellular, iPod touch (6th Generation), iPod touch (7th generation)
Languages
English, Danish
App Store: Customer Ratings
Ratings & Reviews
4.5 of 5 (380 Ratings)
App Store: Customer Reviews
2025-07-09
great iphone json manager
apple turned my json files into .txt, so i coped the contents, pasted them here, and fixed the issue.
2025-04-13
Browser support
App use to work on safari…I don’t know if it’s just my phone or new update but I am no longer seeing it
2024-12-07
No
This app froze my whole phone up for like 10 minutes
2024-09-28
Excellent App for on-the-go tech development
Searched far and wide for a simple app that would just allow viewing json in Safari similar to how it is viewed on a desktop. This app hit the mark and exceeded it! This is a life saver!!
2024-06-09
Well done !
Bravo - manipulative behavior by the one you thought wouldn’t
2023-01-19
Excellent except
Perfect I’m almost every way except that it turns my battery into a torch. It gets hot FAST. TAKE CARE OF THAT AND ITS AN EAAY 5 star app
2022-12-22
I Am No Longer Afraid of JSON
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!
2022-11-08
TERRIBLE!
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
2022-07-16
Jayson is Amazing!
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.
2022-07-05
Good
Good
2022-06-06
Perfect
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.
2022-02-13
I like it so far
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.
2021-11-21
Worthless.
Terrible UI, lacks any features that would actually make it useful. It’s easier to just work with JSON in a text editor.
2021-10-02
Can’t find search
Useless
2021-09-12
The app name
Hey this app has my last name (Jayson) yup I’m loving it 😊
2021-05-02
Comments
Great, only problem is that it doesn’t know how to read comments
2021-02-15
Useful but seems unstable.
Good for editing .JSON files but seems to crash reliably almost every single time I try to use it. Disappointing, but it gets the job done sometimes.
2020-11-19
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!
2020-09-23
Solid app. Just one question...
Great app, Thanks for all the hard work on this. Definitely a very useful app. I do have a question regarding file sizes. I have two rather large JSON files from a malware analysis report, 89 MB and 29MB. Opening both of these results in the app crashing on my iPad 7th generation. Is there a file size limit? Just curious.
2020-08-26
The confetti button was worth the price
I bought it a minute ago and I already feel like I got my money’s worth.
2020-05-23
Really well designed
Love the care that went into designing this app. Tabs are really helpful. Awesome integration with Shortcuts, as explained in the in app documentation, even has videos to show you.
2020-01-02
Really Nice App
Very nice app with great customer support! It’s like a Swiss Army knife for working with JSON. Love the Shortcut support.
2019-12-29
Missing one critical feature ...
I wish it would display a selector that was compatible with Shortcuts.
2019-11-15
I love the app extensions
I can “open JSON” real quick from Charles
2019-09-19
Unapologetically iOS
Absolutely perfect implementation of the latest iOS UI style. It looks and feels like it was developed by Apple. Great work!
2019-05-31
Amazing helpful app
If you spend any time working with Jayson on iOS, this app is worth it.
2019-04-01
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.
2019-02-27
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.
2019-02-20
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?
2019-02-18
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.
2019-02-01
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.