Best Json Apps

227+ iOS apps curated and reviewed

4.1 avg rating
19 free apps
Updated May 2026

The best json apps on iPhone average 4.1★ across 227+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.

Top Picks for Json

Jayson#1

Jayson by Simon B. Støvring

JSON viewer and editor
Editor's Choice
🛠️ Developer Tools
4.5😊(378 ratings)
FreeIn-App Purchases
#78in Developer Tools
Jayson screenshot 1
Jayson screenshot 2
Jayson screenshot 3
Jayson screenshot 4
Jayson screenshot 5

Jayson is a versatile JSON viewer and editor, offering features like browsing, editing, and comparing JSON files, Siri Shortcuts, Share Sheet Actions, URL schemes, and more. Unlock additional features like themes, visual appearance customization, and the ability to open more than two tabs with the "Unlock Everything" in-app purchase. Experience simplified JSON management today!

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
JSON Utilities#3

JSON Utilities by ElamParithi Arul

Easy Tools to Manipulate JSON
Worth Considering
🛠️ Developer Tools
5.0(2 ratings)
Free
JSON Utilities screenshot 1
JSON Utilities screenshot 2
JSON Utilities screenshot 3

This application transforms complex JSON into readable code with a minimalist editor, offering a range of tools for validation, formatting, and editing. Perfect for developers, data scientists, and DevOps engineers, it provides a distraction-free experience across devices, allowing users to easily read and edit JSON data.

More Json apps to explore

4
JSON Viewer ‎
JSON Viewer ‎
JSON Viewer ‎
View and edit JSON
Free
🔧 Utilities
(1)
5
Json Viewer Simple
Json Viewer Simple
Json Viewer Simple
Json Reader
Free

Effortlessly view and manage your JSON files with this intuitive app, featuring search, pagination, and large file support. Download now and boost your productivity when working with JSON files!

🛠️ Developer Tools
(1)
6
JSON Editor Mobile
JSON Editor Mobile
JSON Editor Mobile
by VDT LABS S.R.L.
Free

JSON Editor Mobile is a versatile tool for viewing and editing JSON data on-the-go. With features like outline and text modes, it simplifies the process of creating, validating, and formatting JSON documents. Try it now for seamless JSON editing!

🛠️ Developer Tools
(6)
7
Koder Code Editor
Koder Code Editor
Koder Code Editor
(S)FTP, Dropbox, Webdav, SSH
Free

A versatile code editor for iPad and iPhone, offering syntax highlighting, code autocomplete, file management for Dropbox, (S)FTP, and webdav, an SSH client, and more. Code anytime, anywhere with features like tabbed editing, custom key snippets, and a built-in terminal. Ideal for developers on the go.

🛠️ Developer Tools
(9.3K)
8
JSON Editor Viewer XML PDF
JSON Editor Viewer XML PDF
JSON Editor Viewer XML PDF
JSON File Editor And Reader
Free

This all-in-one data management application allows users to effortlessly work with various data formats, including JSON, XML, and PDF files, with features such as intuitive editing, syntax highlighting, and file management. Download it today to experience the convenience of managing multiple data formats in a single, powerful app and unlock a new level of productivity in your digital endeavors.

🔧 Utilities
(2)
9
JSON FORMATTER PRO
JSON FORMATTER PRO
JSON FORMATTER PRO
Syntax Error Highlighting
Free
$2.99 | 100% OFF

This simple JSON formatting tool provides syntax error highlighting, formatting, and validation, allowing users to easily create and validate JSON data structures on the go. With features like typing, pasting, and exporting JSON, it's a straightforward solution for all your JSON formatting needs.

🔧 Utilities
(55)
10
JSONEditor - JSON Viewer
JSONEditor - JSON Viewer
JSONEditor - JSON Viewer
JSON Editor, Formatter
Free

This powerful JSON editor allows developers to import, view, and edit JSON data with ease, featuring syntax highlighting and a clear tree view. Subscribe now to access advanced features and take your JSON editing to the next level.

🛠️ Developer Tools
(6)
11
Scriptable
Scriptable
Scriptable
Automation using JavaScript
Free

An automation tool that lets you write JavaScript scripts to interact with various iOS features like files, calendars, and widgets. Create custom widgets, use Siri Shortcuts, and access extensive documentation for native iOS APIs to enhance your automation capabilities. Start scripting and automating tasks today!

🛠️ Developer Tools
(3K)
12
Curly: JSON Viewer & Formatter
Curly: JSON Viewer & Formatter
Curly: JSON Viewer & Formatter
JSON Viewer browser extension
Free
🛠️ Developer Tools
(1)
13
Files - File Manager & Browser
Files - File Manager & Browser
Files - File Manager & Browser
Save Files for Offline Viewing
Free

A versatile file management application that allows you to organize, store, and access your files easily. Streamline your digital life with this all-in-one solution for file organization.

📊 Productivity
(12K)
14
JSON Viewer & Editor
JSON Viewer & Editor
JSON Viewer & Editor
Format, Validate & Convert
Free
🛠️ Developer Tools
(0)
15
Simple JSON Reader
Simple JSON Reader
Simple JSON Reader
Simple, convenient JSON Reader
Free

This application allows users to easily view information from JSON files and web pages in a convenient format, simplifying the task of communicating with partners and sharing data. Try it out to make working with JSON data a breeze!

🔧 Utilities
(1)
16
Smart JSON & XML Editor
Smart JSON & XML Editor
Smart JSON & XML Editor
Viewer, Formatter & Tools
Free
🛠️ Developer Tools
(0)
17
Power JSON Editor Mobile
Power JSON Editor Mobile
Power JSON Editor Mobile
A must have JSON tool for dev
Free

This powerful JSON editor for app and web developers allows for easy viewing, exploring, and validating of JSON files on iOS devices, with features such as tree view, text view with syntax highlighting, and multiple import tools. Try it out and take your JSON editing to the next level with a tool that supports external keyboards and seamless file management.

🛠️ Developer Tools
(10)
18
Dashboard (of JSON Requests)
Dashboard (of JSON Requests)
Dashboard (of JSON Requests)
Dashboard to visualize JSON
Free

This tool allows users to create a personalized dashboard to visualize JSON data, helping them to focus on key information. Users can customize their dashboard to display relevant data, such as sales, weather, or temperature, and keep everything in focus.

🔧 Utilities
(4)
19
JSON Prettify
JSON Prettify
JSON Prettify
Validez et formatez votre JSON
Free

Transform messy JSON data into a well-organized format with detailed error messages using this user-friendly tool. Simplify your JSON workflow effortlessly - try it out now!

🛠️ Developer Tools
(2)
20
JSON Tools
JSON Tools
JSON Tools
JSON Viewer and Formatter
$2.99
$4.99 | 40% OFF
🛠️ Developer Tools
(1)

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