Comparison

HTML Master vs JSON Viewer, Editor & Format

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HTML Master

Easily create, edit, and view HTML files with a split-screen feature for real-time code-to-view comparison. Manage files, download website source code, and practice JavaScript. Includes learning sections for HTML/CSS and web development podcasts.

Highlights
  • Create and edit HTML files
  • Split-screen code and view
  • File manager functionality
  • Download and edit website source code
  • JavaScript console
  • Learn HTML & CSS sections
  • Web development podcasts & feeds
Features
Read full description

HTML Master is a complete coding, viewing, and learning app for web developers, students, and beginners who want to create and manage web projects directly on iPhone and iPad. Create, edit, preview, and organize HTML, CSS, and JavaScript files with an easy file manager and split-screen editor. Build folders, manage project files, preview HTML output, scan codes, and share your work directly from the app. HTML Master also includes JavaScript and Python compiler tools, an Online Compiler, an HTML Viewer, learning sections for HTML, CSS, JavaScript, and Python, plus curated web development feeds and podcasts. Key Features: • HTML editor with live preview support • JavaScript compiler and console • Python compiler • Online compiler • QR and barcode scanner • Scanner support for links, text, JavaScript snippets, and Python snippets • HTML viewer for checking website source • File and folder manager • Export folders and selected files/folders as ZIP • Import ZIP folders into your project directory • Multiple editor code themes • Day/Night app theme • Custom editor font support • Learn HTML, CSS, JavaScript, and Python • Web development feeds and podcasts • First-time user tutorial • Share files and folders easily HTML Master is designed to help you code, create, learn, scan, and manage web projects from one simple app. For feedback or support, contact: ankitashu405@gmail.com

About

JSON Viewer, Editor & Format

Features
Read full description

JSON Viewer & JSON/XML Editor is the ultimate mobile tool for developers, analysts, testers, and tech enthusiasts who work with structured data. Whether you're reading API responses, editing configuration files, or formatting complex nested objects, this app provides a powerful and user-friendly experience to view, edit, validate, format, and transform both JSON and XML files directly from your mobile device. Working with JSON or XML can often become tedious and error-prone, especially when you're on the go or away from your desktop. This app solves that by bringing all the essential tools into one mobile-first experience—with syntax-aware editing, automatic formatting, tree view navigation, and AI-powered utilities—all in your pocket. The app features a fast and intuitive JSON Viewer that lets you open any JSON data and see it rendered in a clean, collapsible tree structure. Easily navigate through nested objects and arrays, expand or collapse levels, and copy values or keys with a tap. The viewer supports large JSON files without lag and handles edge cases gracefully. The XML Editor and Viewer offers similar functionality for XML files. View the document structure in a hierarchical layout, inspect nodes and attributes, and edit values in-line. With auto-indentation and closing tag support, editing XML becomes smooth and less error-prone. Smart Editing Capabilities: Use the integrated code editor to write or modify JSON/XML content with syntax highlighting, bracket matching, line numbering, and error detection. The editor helps you avoid common mistakes by showing you exactly where an issue occurs, such as missing commas, mismatched brackets, or invalid nesting. Beautify and Minify in One Tap: Format your data instantly using the built-in beautifier for both JSON and XML. Whether your file is a single compressed line or poorly formatted, one tap will turn it into clean, human-readable code. You can also minify it for performance and storage purposes. AI Assistant for Data Help: Stuck on what to do with a raw JSON or XML structure? Just ask the AI! It can explain what a particular schema represents, suggest how to convert one structure to another, or even generate a sample JSON/XML based on your description like “Create a user profile with name, age, and address.” It’s like having a smart data assistant on demand. Validate and Fix Errors: Run schema validation on your files to detect syntax errors and structural issues. The app not only shows you where the problem lies but also suggests corrections when possible. Whether you're debugging a malformed API response or validating a config file before deployment, the app gives you confidence that your data is correct. Convert Between JSON and XML: Effortlessly convert JSON to XML and vice versa using the built-in converter. Preserve formatting, handle nested structures, and avoid manual rewriting. This feature is perfect for developers working across systems, formats, or platforms. Import and Export Easily: Load data from files, clipboard, URLs, or cloud storage. Export your edited files as JSON or XML, save them to your device, or share them instantly via email or messaging apps. Whether you're debugging mobile APIs or updating app configs, it's all done in a few taps. Offline Mode: All major functionalities work fully offline, so you're never dependent on an internet connection when editing or reviewing files. Dark Mode & Custom Themes: For late-night debugging or personal comfort, the app offers dark mode and custom syntax color themes to reduce eye strain and personalize your editing environment. History and Undo: Track your editing changes with full undo/redo support and access version history for your files. Accidentally made a mistake? Just roll back to a previous version or undo recent changes with ease. Term of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://coddykit.com/terms/privacy-policy

Screenshots

HTML Master4 screens
JSON Viewer, Editor & Format4 screens

Verdict

The call

The clearest difference is in-app purchases: HTML Master at none against JSON Viewer, Editor & Format's 4. HTML Master also leads on update cadence (every 2 weeks vs every 4 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. JSON Viewer, Editor & Format sells 4 in-app purchases, starting at $3.99 per 7 days. HTML Master asks for nothing beyond the download.

UpkeepUpdate frequency

HTML Master ships an update every 2 weeks, JSON Viewer, Editor & Format every 4 weeks. The most recent releases landed on September 19, 2026 and September 25, 2026 respectively.

Scorecard2 real differences · 8 level
HTML Master versus JSON Viewer, Editor & Format: the parameters behind the verdict, then further details
ParameterHTML MasterJSON Viewer, Editor & Format
PriceFreeFree
Rating3.2 (19 ratings) — better—
Positive reviews52.2% of reviews—
Number of ratings19 — better—
Update frequencyEvery 2 weeks — betterEvery 4 weeks
AdsYesYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size34 MB67 MB
Age rating4+4+
DeveloperAnkit GuptaMEHMET CANKER (TR)

In-app purchases

None

HTML Master

No in-app purchases

4 purchases

JSON Viewer, Editor & Format

Subscriptions3
  • Weekly Subscription$3.997 Days
  • Monthly Subscription$4.991 Month
  • Yearly Subscription$8.901 Year
One-time1
  • Lifetime Subscription$19.90

Questions

Is HTML Master free?
HTML Master is free to download, with no in-app purchases.
Is JSON Viewer, Editor & Format free?
JSON Viewer, Editor & Format is free to download, with in-app purchases available.
Do HTML Master or JSON Viewer, Editor & Format have ads?
Both HTML Master and JSON Viewer, Editor & Format show ads.
Which is updated more often, HTML Master or JSON Viewer, Editor & Format?
HTML Master ships an update every 2 weeks, and JSON Viewer, Editor & Format every 4 weeks. Most recently, HTML Master was updated on September 19, 2026 and JSON Viewer, Editor & Format on September 25, 2026.

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