Best Formatter Apps

242+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated August 2026

From beginner-friendly picks to power-user tools, our formatter list covers 242+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.

Compare top Formatter Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1FormatterFormatterFree was $2.995.0★ (2)NoNoMay 2026
2JSON FormatterJSON FormatterFree3.5★ (4)NoNoMay 2026
3Nellie Screenplay FormatterNellie Screenplay FormatterFree was $3.995.0★ (1)NoNoJul 2026
4Magical Text FormatterMagical Text FormatterFree5.0★ (1)NoNoMay 2026
5DateTime - Date FormatterDateTime - Date FormatterFree5.0★ (1)NoNoAug 2026
6Social FormatterSocial FormatterFreeNoNoMay 2026
7Case FormatterCase FormatterFree5.0★ (1)NoYesMay 2026
8Date FormatterDate FormatterFree5.0★ (1)NoNoMay 2026

Top Picks for Formatter

Formatter#1

Formatter by Mew Sang Lim

Json Formatter
Editor's Choice
🔧 Utilities
5.0(2 ratings)
Free
Formatter screenshot 1

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.

JSON Formatter#2

JSON Formatter by Robert Surrette

Pretty Print JSON
Strong Contender
📊 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.

More Formatter apps to explore

4
Magical Text Formatter
Magical Text Formatter
Magical Text Formatter
Text that looks intentional
Free

Elevate your social media posts with unique and professional-looking text. This app offers a variety of stylish fonts and formatting options to make your content stand out and capture attention.

Variety of beautiful fontsSimple formatting optionsLinkedIn-ready styles
🔧 Utilities
(1)
free
5
DateTime - Date Formatter
DateTime - Date Formatter
DateTime - Date Formatter
Full Unicode LDML Reference
Free

This app lets you experiment with date formatting using Unicode LDML specifications. Preview your formatted dates with the current time and easily share your custom format strings with others.

Test arbitrary date formatsPreview with current timeFull Unicode LDML reference
🔍 Reference
(1)
free
6
Social Formatter
Social Formatter
Social Formatter
Style your text
Free
🔧 Utilities
(0)
7
Case Formatter
Case Formatter
Case Formatter
Quick text case formatter
Free

Instantly convert text to various cases like UPPERCASE, lowercase, Title Case, and Sentence case. Features auto-paste from the clipboard and a clean, minimalist interface to boost your text formatting efficiency.

Multiple text case conversionsAuto Paste from clipboardMinimalist UI
🔧 Utilities
(1)
free
8
Date Formatter
Date Formatter
Date Formatter
Test ISO 8601 date time format
Free

This utility helps developers easily test and understand date and time format strings. It allows for setting custom dates, time zones, and supports over 689 locales for localized formatting.

Test any date/timeSet different time zonesSupport for 689+ locales
🔧 Utilities
(1)
free
9
FormatMyDate - Date Formatter
FormatMyDate - Date Formatter
FormatMyDate - Date Formatter
Date Formatter with References
Free

Easily format dates and times across your Apple devices. This app provides an instant playground for date formatting, a comprehensive symbol table based on LDML standards, and common format examples. Enhance productivity for developers, content creators, and casual users.

Universal app for iPhone, iPad, and MacBookInstant date formatting playgroundComprehensive LDML symbol table
🛠️ Developer Tools
(3)
free with in-app purchases
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
NoteFormat - Expense Formatter
NoteFormat - Expense Formatter
NoteFormat - Expense Formatter
Flexible Expense Import/Export
Free
📊 Productivity
(0)
12
JSON Formatter Simple Parsing
JSON Formatter Simple Parsing
JSON Formatter Simple Parsing
Parse JSON Strings and Files
Free
🛠️ Developer Tools
(0)
13
AddressGO - Address Formatter
AddressGO - Address Formatter
AddressGO - Address Formatter
Auto-Format: Visa & Shipping
Free
$0.99 | 100% OFF

This utility app instantly formats local addresses into standardized English fields for online forms, visa applications, and international shipping. It intelligently splits address lines and offers multiple English views, including options for strict character limits.

Split Line 1 / Line 2 instantlyThree address views (Full English, Short English, Original)Landmark and company name translation
🔧 Utilities
(1)
free with in-app purchases
14
JSON Brace: Viewer & Formatter
JSON Brace: Viewer & Formatter
JSON Brace: Viewer & Formatter
Pretty-print & explore data
Free
$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
(2)
freemium
15
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
16
CopyStyler: Post Formatter
CopyStyler: Post Formatter
CopyStyler: Post Formatter
Social Media Content Creator
Free

Enhance your social media content with unique fonts, formatted text, and clean line breaks. This tool helps creators craft engaging captions and bios that stand out across all major platforms, boosting visibility and interaction.

Fancy fonts with bold/italic optionsCustomizable lists with emojis/symbolsClean line breaks for readability
🌐 Social Networking
(1)
freemium
17
JSON Viewer & Formatter
JSON Viewer & Formatter
JSON Viewer & Formatter
Validate,Beautify,Compare JSON
Free

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
🔧 Utilities
(1)
free with in-app purchases
18
Structly - JSON Formatter
Structly - JSON Formatter
Structly - JSON Formatter
Beautiful JSON for Safari
Free

This tool enhances your browsing experience by transforming raw JSON data into clear, readable views directly within Safari. It offers effortless formatting, advanced search, and versatile export options, all while prioritizing user privacy with on-device operation and no data collection.

Effortless JSON formattingSyntax highlighting and collapsible sectionsLine numbers for reference
🛠️ Developer Tools
(1)
free
19
JSON View : Editor & Formatter
JSON View : Editor & Formatter
JSON View : Editor & Formatter
View, Edit & Validate JSON
Free
🛠️ Developer Tools
(0)
20
JSONCraft - Editor & Formatter
JSONCraft - Editor & Formatter
JSONCraft - Editor & Formatter
Smart and Elegant JSON Editor
$1.99
🛠️ Developer Tools
(0)

FAQ about Formatter

What are the best formatter apps for iPhone?
Formatter tops our formatter apps ranking as of August 2026, with a 5.0-star average from 2 App Store ratings, and it's free to download.
Yes — 19 of the top formatter apps we rank are free to download, including Formatter and JSON Formatter.
Formatter has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 242+ formatter apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Formatter is available on Mac, iPhone, and iPad, offering cross-platform utility for users across Apple devices.
The app was last updated on October 3, 2025, indicating active development and potential for future improvements and bug fixes.

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