Best Json Formatter Apps

249+ iOS apps curated and reviewed

3.6 avg rating
17 free apps
Updated October 2026

If you already know JSON Formatter, this is the deeper bench. 249+ json formatter apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.

Compare top Json Formatter Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1JSON FormatterJSON FormatterFree3.5★ (4)NoNoMay 2026
2JaysonJaysonFree4.5★ (448)NoYesNov 2026
3JSON FORMATTER PROJSON FORMATTER PROFree4.9★ (60)NoNoOct 2026
4JSON Formatter Simple ParsingJSON Formatter Simple ParsingFree—NoNoJul 2026
5JSON Viewer & FormatterJSON Viewer & FormatterFree1.0★ (1)YesYesOct 2026
6FormatterFormatterFree5.0★ (2)NoNoMay 2026
7JSONCraft - Editor & FormatterJSONCraft - Editor & Formatter$1.99—NoNoAug 2026
8Jeyso: JSON Diff & FormatterJeyso: JSON Diff & FormatterFree—NoNoSep 2026

Top Picks for Json Formatter

Jayson#2

Jayson by Simon B. Støvring

JSON editor with Shortcuts
Strong Contender
🛠️ Developer Tools
4.5😊(448 ratings)
FreeIn-App Purchases
#96in Developer Tools
Jayson screenshot 1
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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
JSON FORMATTER PRO#3

JSON FORMATTER PRO by Creative Greenlight LLC

Syntax Error Highlighting
Worth Considering
🔧 Utilities
4.9(60 ratings)
Free
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This utility app simplifies JSON formatting and validation. It offers syntax error highlighting and allows users to type or paste JSON data for easy manipulation and export. Ideal for developers and anyone working with JSON on the go.

More Json Formatter apps to explore

FAQ about Json Formatter

What are the best json formatter apps for iPhone?
JSON Formatter tops our json formatter apps ranking as of October 2026, with a 3.5-star average from 4 App Store ratings, and it's free to download.
Yes — 17 of the top json formatter apps we rank are free to download, including JSON Formatter and Jayson.
JSON Formatter has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 249+ json formatter apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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