Best Json Formatter Apps

232+ iOS apps curated and reviewed

4.4 avg rating
18 free apps
Updated July 2026

If you already know JSON Formatter, this is the deeper bench. 232+ json formatter apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.

Compare top Json Formatter Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1JSON FormatterJSON FormatterFree3.5★ (4)NoNoMay 2026
2JaysonJaysonFree4.5★ (378)NoYesJul 2026
3Json Viewer-View and Edit JsonJson Viewer-View and Edit JsonFree4.5★ (46)YesNoJul 2026
4JSON FORMATTER PROJSON FORMATTER PROFree was $2.994.9★ (55)NoNoMay 2026
5FormatterFormatterFree was $2.995.0★ (2)NoNoMay 2026
6JSON UtilitiesJSON UtilitiesFree5.0★ (2)NoNoJul 2026
7ScriptableScriptableFree4.7★ (3K)NoYesJul 2026
8JSON Viewer & FormatterJSON Viewer & FormatterFreeYesYesJun 2026

Top Picks for Json Formatter

JSON Formatter#1

JSON Formatter by Robert Surrette

Pretty Print JSON
Editor's Choice
📊 Productivity
3.5(4 ratings)
Free
JSON Formatter screenshot 1
JSON Formatter screenshot 2
JSON Formatter screenshot 3

This utility helps you format and view JSON strings with clear, readable indentation. It offers both light and dark themes for a comfortable viewing experience.

Jayson#2

Jayson by Simon B. Støvring

JSON viewer and editor
Strong Contender
🛠️ Developer Tools
4.5😊(378 ratings)
FreeIn-App Purchases
#75in Developer Tools
Jayson screenshot 1
Jayson screenshot 2
Jayson screenshot 3
Jayson screenshot 4
Jayson screenshot 5

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

Room to Improve

  • 🐛 Frequent crashes and instability issues
  • 🔋 High battery consumption and device heating
  • ❌ Missing search functionality

More Json Formatter apps to explore

4
JSON FORMATTER PRO
JSON FORMATTER PRO
JSON FORMATTER PRO
Syntax Error Highlighting
Free
$2.99 | 100% OFF

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.

Syntax Error HighlightingJSON FormattingType JSON
🔧 Utilities
(55)
free
5
Formatter
Formatter
Formatter
Json Formatter
Free
$2.99 | 100% OFF

This utility app transforms messy JSON data into a clean, readable format. It eliminates the frustration of scrolling and eye strain associated with poorly formatted code, simplifying data analysis.

Seamless JSON formattingTransforms unruly JSONClean, human-readable output
🔧 Utilities
(2)
free
6
JSON Utilities
JSON Utilities
JSON Utilities
Easy Tools to Manipulate JSON
Free

This minimalist editor transforms complex JSON into readable code with a distraction-free interface. It offers real-time validation, one-click formatting, and effortless string manipulation, working completely offline across multiple Apple platforms.

Minimalist interfaceOffline functionalityReal-time JSON validation
🛠️ Developer Tools
(2)
free
7
Scriptable
Scriptable
Scriptable
Automation using JavaScript
Free

Automate tasks on your device by writing custom scripts in JavaScript. Integrate with native iOS features like files, calendars, and reminders. Create personalized widgets for your Home Screen and interact with Siri.

Write and run JavaScriptCreate custom widgetsSiri Shortcuts integration
🛠️ Developer Tools
(3K)
free with in-app purchases
8
JSON Viewer & Formatter
JSON Viewer & Formatter
JSON Viewer & Formatter
JSON Viewer - JSON Formatter
Free
🔧 Utilities
(0)
9
JSON Formatter Simple Parsing
JSON Formatter Simple Parsing
JSON Formatter Simple Parsing
Parse JSON Strings and Files
Free
🛠️ Developer Tools
(0)
10
Curly: JSON Viewer & Formatter
Curly: JSON Viewer & Formatter
Curly: JSON Viewer & Formatter
JSON Viewer browser extension
Free

This browser extension automatically formats and highlights raw JSON text on webpages, making it instantly readable and interactive. It's designed to boost productivity for developers by simplifying data inspection and API debugging.

Automatic JSON detectionSyntax highlightingInteractive JSON view
🛠️ Developer Tools
(1)
ad-supported
11
Json Genie: JSON Editor/Viewer
Json Genie: JSON Editor/Viewer
Json Genie: JSON Editor/Viewer
View, Edit & Format JSON Files
Free

This app provides a fast and private way to view, edit, compare, and merge JSON files directly on your device. It offers a clear tree structure for browsing, powerful search capabilities, and formatting options without needing an account or cloud upload.

View JSON in a tree structureEdit JSON data safelyCompare JSON files
🛠️ Developer Tools
(2)
free with in-app purchases
12
JSON View : Editor & Formatter
JSON View : Editor & Formatter
JSON View : Editor & Formatter
by Gautam Singh Rathor
Free
🛠️ Developer Tools
(0)
13
Jeyso: JSON Diff & Formatter
Jeyso: JSON Diff & Formatter
Jeyso: JSON Diff & Formatter
Format, Validate & Beautify
Free
🛠️ Developer Tools
(0)
14
JSONEditor - JSON Viewer
JSONEditor - JSON Viewer
JSONEditor - JSON Viewer
JSON Editor, Formatter
Free

This app allows developers to import, view, and edit JSON files with syntax highlighting. It offers tree view for clear visualization and supports importing from files or HTTP requests.

Import JSON from Files appImport JSON from HTTP requestTree View for clear visualization
🛠️ Developer Tools
(6)
freemium
15
JSON Viewer & Editor
JSON Viewer & Editor
JSON Viewer & Editor
Format, Validate & Convert
Free

This app provides a fast, offline JSON toolkit for developers and data-focused users. It allows you to view, edit, validate, and format JSON files with features like syntax highlighting, tree view, and format conversion.

Syntax highlighting code editorCollapsible tree viewOffline validation and formatting
🛠️ Developer Tools
(2)
free
16
JSONSpruce
JSONSpruce
JSONSpruce
JSON Formatter for Safari
Free

This Safari extension automatically formats raw JSON data encountered on webpages into a readable, syntax-highlighted display. It offers interactive features like collapsible sections and one-tap actions for easy data manipulation and analysis.

Automatic JSON detectionSyntax highlightingCollapsible sections
🛠️ Developer Tools
(0)
free
17
Advanced JSON Viewer
Advanced JSON Viewer
Advanced JSON Viewer
Superior JSON view & format
$1.99

This tool enhances JSON data viewing and editing within Safari and on your device. It offers beautiful formatting, syntax highlighting, and an interactive editor for efficient JSON management.

Open and save JSON filesBeautiful JSON formattingSyntax highlighting
🛠️ Developer Tools
(3)
paid
18
JSON Tools
JSON Tools
JSON Tools
JSON Viewer and Formatter
$0.99
$2.99 | 67% OFF

A comprehensive toolkit for developers to visualize, validate, convert, and generate code from JSON data. It offers features like interactive tree views, schema generation, and code export for multiple programming languages.

Interactive Tree View and JSONPath queryingConvert JSON to XML, CSV, YAML, and moreGenerate type-safe model classes for multiple languages
🛠️ Developer Tools
(1)
paid
19
Power JSON Editor Mobile
Power JSON Editor Mobile
Power JSON Editor Mobile
A must have JSON tool for dev
Free

This app provides a robust JSON editing experience for developers on iOS devices. It allows for easy viewing, exploring, and validating JSON files through a document browser interface and offers both tree and text views with syntax highlighting.

Document browser for file managementTree view for JSON hierarchyText view with syntax highlighting
🛠️ Developer Tools
(10)
free with in-app purchases
20
Smart JSON & XML Editor
Smart JSON & XML Editor
Smart JSON & XML Editor
Viewer, Formatter & Tools
Free

This app provides developers, testers, and data analysts with a comprehensive mobile toolkit for working with structured data. It offers multiple editing modes, formatting, conversion between JSON and XML, and powerful data manipulation tools for efficient data management on the go.

Multiple editing modes (Tree, Source, List)Syntax highlightingOne-tap format and minify
🛠️ Developer Tools
(0)
free

FAQ about Json Formatter

What are the best json formatter apps for iPhone?
JSON Formatter tops our json formatter apps ranking as of July 2026, with a 3.5-star average from 4 App Store ratings, and it's free to download.
Yes — 18 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 July 2026.
We track 232+ json formatter apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
JSON Formatter is a mobile application designed to help users pretty print and format JSON strings for better readability. It aids in debugging and understanding JSON data structures.
JSON Formatter is available for iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users.

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