Best Json Apps

250+ iOS apps curated and reviewed

4.0 avg rating
18 free apps
Updated September 2026

The best json apps on iPhone average 4.0★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Json Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1JaysonJaysonFree4.5★ (425)NoYesSep 2026
2Koder Code EditorKoder Code EditorFree4.6★ (12K)NoNoSep 2026
3JSON Viewer ‎JSON Viewer ‎Free1.0★ (2)NoNoAug 2026
4Json Viewer SimpleJson Viewer SimpleFree5.0★ (1)YesNoJun 2026
5JSON UtilitiesJSON UtilitiesFree—NoNoSep 2026
6JSON Editor Viewer XML PDFJSON Editor Viewer XML PDFFree1.0★ (2)NoNoMay 2026
7Json Genie: JSON Editor/ViewerJson Genie: JSON Editor/ViewerFree4.6★ (5)YesYesSep 2026
8JSON Editor MobileJSON Editor MobileFree3.9★ (11)NoYesAug 2026

Top Picks for Json

Jayson#1

Jayson by Simon B. Støvring

JSON editor with Shortcuts
4.5😊(425 ratings)
FreeIn-App Purchases
#72in Developer Tools
Jayson screenshot 1
Jayson screenshot 2
Jayson screenshot 3
Jayson screenshot 4
Jayson screenshot 5
Jayson screenshot 6

This app allows you to view and edit JSON files directly on your device. It offers features like tabbed browsing, split-screen comparisons, and integration with Siri Shortcuts and the Share Sheet for easy JSON parsing and management.

What We Love

  • 👍 Elegant and intuitive JSON editing interface
  • 🎯 Perfect for FNF mod development and updates
  • 📱 Excellent iOS implementation with native feel
  • 🔧 Powerful JSON manipulation capabilities
  • ⚡ Great Shortcuts and URL scheme integration
  • 📂 Effective file navigation and viewing
  • ✨ Beautiful UI design and visual presentation
  • 🆓 Free core functionality available
  • 🎨 Tab support for multiple files
  • 💪 Lifesaver for developers and power users

Room to Improve

  • 🐛 Frequent crashes and instability issues
  • 🔋 High battery consumption and device heating
  • ❌ Missing search functionality
  • 📵 Safari browser support issues
  • 🔒 Limited free features, paywall for advanced options
  • ⚙️ Confusing UI navigation on iPhone
  • 🤔 Steep learning curve for some users
  • 📊 Poor performance with large files
  • 😞 Inadequate customer support and response times
Koder Code Editor#2

Koder Code Editor by Reny Mustika

(S)FTP, Dropbox, Webdav, SSH
Strong Contender
🛠️ Developer Tools
4.6😐(12K ratings)
Free
#23in Developer Tools
Koder Code Editor screenshot 1
Koder Code Editor screenshot 2
Koder Code Editor screenshot 3
Koder Code Editor screenshot 4

A powerful code editor for mobile devices, offering syntax highlighting for over 80 languages, remote file access, and a built-in terminal. Perfect for developers who need to code on the go with a well-designed interface.

What We Love

  • 🚀 Great for coding on the go
  • 👍 Clean and intuitive UI
  • 🚀 Efficient file management
  • 🚀 Supports multiple file formats
  • 🚀 Seamless cloud integration

Room to Improve

  • 🐛 Crashes and stability issues
  • 🐛 Bugs when switching between apps
  • 🐛 File corruption and data loss
  • 🐛 Unreliable SFTP/SSH connections
  • 🐛 Lack of customization options

More Json apps to explore

FAQ about Json

What are the best json apps for iPhone?
Jayson tops our json apps ranking as of September 2026, with a 4.5-star average from 425 App Store ratings, and it's free to download.
Yes — 18 of the top json apps we rank are free to download, including Jayson and Koder Code Editor.
Jayson has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ json apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Jayson is a mobile application designed for viewing and editing JSON files. It provides a user-friendly interface to browse, parse, and manage JSON data directly on your device, supporting various viewing modes and comparison tools.
Key features include browsing JSON files, toggling between table and syntax-highlighted text views, a tabbed interface for easy navigation, split-screen functionality for document comparison, and integration with Siri Shortcuts and Share Sheet Actions for efficient JSON parsing.

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