Best Json Designer Apps

214+ iOS apps curated and reviewed

3.5 avg rating

19 free apps

Updated June 2026

Every iPhone needs a few good json designer apps. We benchmark 214+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Json Designer Apps (June 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	JSON Designer	Free	3.3★ (10)	No	Yes	May 2026
2	JSON Tools - View Edit	Free	1.0★ (1)	Yes	Yes	Aug 2026
3	JSON FORMATTER PRO	Free was $2.99	4.9★ (55)	No	No	Jul 2026
4	Simple JSON Reader	Free	2.0★ (1)	No	No	May 2026
5	JSON Navigator	$0.99	5.0★ (2)	No	No	Aug 2026
6	JSONEditor - JSON Viewer	Free	4.3★ (12)	No	Yes	Sep 2026
7	JSON Viewer & Editor	Free	5.0★ (3)	No	No	Aug 2026
8	Dashboard (of JSON Requests)	Free	5.0★ (4)	No	No	May 2026

Top Picks for Json Designer

#1

JSON Designer by Cribster UG (haftungsbeschrankt)

Modeling better Documentation

Editor's Choice

📊 Productivity

3.3(10 ratings)

FreeIn-App Purchases

JSON Designer screenshot 1

JSON Designer screenshot 2

Visually model and design JSON structures with this intuitive tool. Generate code from your models and export diagrams for documentation. Ideal for developers who want to understand and represent APIs more effectively.

#2

JSON Tools - View Edit by OKAN KAYCI

Pro JSON editor for devs

Strong Contender

🛠️ Developer Tools

1.0(1 ratings)

FreeAdsIn-App Purchases

JSON Tools - View Edit screenshot 1

JSON Tools - View Edit screenshot 2

JSON Tools - View Edit screenshot 3

JSON Tools - View Edit screenshot 4

JSON Tools - View Edit screenshot 5

JSON Tools - View Edit screenshot 6

This app provides developers with tools to view, edit, and compare JSON data. It offers hierarchical tree views, raw text editing with syntax highlighting, advanced search capabilities including JSONPath, and file operations for local and remote JSON files.

#3

JSON FORMATTER PRO by Creative Greenlight LLC

Syntax Error Highlighting

Worth Considering

4.9(55 ratings)

Free

JSON FORMATTER PRO screenshot 1

JSON FORMATTER PRO screenshot 2

JSON FORMATTER PRO screenshot 3

JSON FORMATTER PRO screenshot 4

JSON FORMATTER PRO screenshot 5

JSON FORMATTER PRO screenshot 6

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 Designer apps to explore

Simple JSON Reader

Simple JSON Reader

Simple JSON Reader

Simple, convenient JSON Reader

Easily view and understand information from JSON files and web pages. This utility simplifies data presentation, making complex data accessible in a convenient format for various projects and partners.

View JSON filesView JSON from web pagesConvenient data format

Beautify JSON output in Safari

This app transforms JSON data into interactive, visualized trees directly within Safari. It offers instant visualization, data type indicators, and easy navigation through complex structures. Customize your viewing experience with light and dark themes.

Instant JSON visualizationInteractive tree-view interfaceData type indicators

🛠️ Developer Tools

JSONEditor - JSON Viewer

JSONEditor - JSON Viewer

JSONEditor - JSON Viewer

JSON Editor, Formatter

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

JSON Viewer & Editor

JSON Viewer & Editor

JSON Viewer & Editor

Format, Validate & Convert

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

Dashboard (of JSON Requests)

Dashboard (of JSON Requests)

Dashboard (of JSON Requests)

Dashboard to visualize JSON

Create a personalized dashboard to visualize any data you choose. Monitor key metrics like sales, weather, or room temperature with this versatile tool.

Personalized data visualizationCustomizable dashboard layoutMonitor sales and turnover

Pretty Print JSON

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.

Pretty print JSONReadable indentationLight mode

📊 Productivity

JSON Brace: Viewer & Formatter

JSON Brace: Viewer & Formatter

JSON Brace: Viewer & Formatter

Pretty-print & explore data

$1.99 | 100% OFF

This tool automatically formats and navigates JSON data directly within Safari. It offers smart detection, theme switching, and keyboard shortcuts for efficient data exploration. An optional Pro upgrade unlocks advanced features like lightning-fast search and custom expansion.

Automatic JSON formattingExpand/collapse JSON objects and arraysLight and dark theme switching

🛠️ Developer Tools

JSON Viewer & Formatter

JSON Viewer & Formatter

JSON Viewer & Formatter

Validate,Beautify,Compare JSON

Format, validate, and compare JSON data offline on your iPhone or iPad. This tool offers a tree view, search functionality, and custom themes for efficient data management. Export JSON to various formats and handle large files smoothly.

Beautify & Minify JSONImport JSON files or paste from clipboardExport JSON to CSV, XML, YAML

free with in-app purchases

JSON Viewer, Editor & Format

JSON Viewer, Editor & Format

JSON Viewer, Editor & Format

Parse, Format & Validate Data

JSON Master: Editor & Viewer

JSON Master: Editor & Viewer

JSON Master: Editor & Viewer

JSON to CSV, XML, Excel Tool

This offline iOS tool formats, views, validates, and converts JSON data. It supports large files and offers privacy-safe, local processing for developers needing to debug API responses or transform data formats.

Offline JSON formatting and beautifyingTree and text view for JSON visualizationInstant JSON syntax validation

📊 Productivity

free with in-app purchases

JSON Formatter for Safari

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

Dashboard for your API

🛠️ Developer Tools

JSON Tools: XLSX CSV to JSON

JSON Tools: XLSX CSV to JSON

JSON Tools: XLSX CSV to JSON

Convert XLSX CSV & XML to JSON

This app transforms data between various formats like XLSX, CSV, XML, and JSON. It offers conversion, validation, viewing, and optimization tools for efficient data management.

XLSX to JSON conversionCSV to JSON conversionXML to JSON conversion

📊 Productivity

Smart JSON & XML Editor

Smart JSON & XML Editor

Smart JSON & XML Editor

Viewer, Formatierer & Tools

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

JSON Beautifier - Clean Data

JSON Beautifier - Clean Data

JSON Beautifier - Clean Data

Prettify and format your JSON

JSON Editor Viewer XML PDF

JSON Editor Viewer XML PDF

JSON Editor Viewer XML PDF

JSON File Editor And Reader

This app allows users to view, edit, and manage JSON, XML, and PDF files in a single platform. It offers features like syntax highlighting, file management, and search capabilities for efficient data manipulation and document review.

Multi-format compatibility (JSON, XML, PDF)Intuitive JSON editingXML data management

Replit: Vibe Code with AI Fast

Replit: Vibe Code with AI Fast

Replit: Vibe Code with AI Fast

Apps, slides, websites, videos

Build and deploy apps, websites, and games directly from your phone. Utilize AI to generate projects from natural language prompts, collaborate in real-time, and host your creations instantly with zero setup. Suitable for both beginners and experienced developers.

Build apps with natural language AIInstant zero-setup hostingReal-time multiplayer collaboration

🛠️ Developer Tools

free with in-app purchases

FAQ about Json Designer

What are the best json designer apps for iPhone?

JSON Designer tops our json designer apps ranking as of June 2026, with a 3.3-star average from 10 App Store ratings, and it's free to download.

Are there free json designer apps for iPhone?

Yes — 19 of the top json designer apps we rank are free to download, including JSON Designer and JSON Tools - View Edit.

Does JSON Designer have ads or in-app purchases?

JSON Designer has no ads and offers in-app purchases, according to its App Store listing as of June 2026.

How many json designer apps are on the App Store?

We track 214+ json designer apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.

What does JSON Designer do?

JSON Designer is a tool that allows you to visually model and design JSON structures. It helps you create object-oriented representations of JSON data, making it easier to understand and document APIs without needing to read extensive documentation.

What are the key features of JSON Designer?

Key features include graphically modeling JSON structures (JMs), exporting these models as images for documentation, reverse-generating models from URLs or direct JSON input, browsing hand-picked API examples, and generating Protocol Buffers (.proto) files for gRPC. It also offers a tutorial and open-in functionality for file exchange.