JSON Tools vs HTMLSource
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JSON Tools
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 querying
- Convert JSON to XML, CSV, YAML, and more
- Generate type-safe model classes for multiple languages
- Auto-generate JSON Schema for validation
- Dedicated JSON syntax keyboard overlay
- Background processing for large datasets
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A complete JSON viewer, formatter, editor, validator and converter for iPhone and iPad. Open JSON files, inspect complex data, format and edit content, validate schemas, compare documents, convert between formats and generate model code from one focused developer tool. VIEW AND EXPLORE JSON • Browse JSON using an interactive Tree View • Inspect arrays using Table View • Query data with JSONPath • Search and navigate complex documents • Work with multiple files using tabs FORMAT AND EDIT • Format and prettify JSON • Minify JSON instantly • Find and replace • Syntax highlighting with line numbers • Open JSON files directly from Files, Mail, Safari and other apps VALIDATE JSON • Validate JSON syntax • Validate documents against JSON Schema • Generate JSON Schema from existing JSON • See validation errors while you work CONVERT JSON Convert JSON to: • YAML • XML • CSV • TSV • TOML • HTML • Markdown • Base64 • TOON GENERATE CODE Generate model classes for: • Swift • Kotlin • TypeScript • C# • Java • Python • Dart COMPARE JSON Compare two JSON documents side by side and quickly identify added, removed and changed values, including differences inside nested objects. BUILT FOR DEVELOPERS JSON Tools is designed for inspecting API responses, working with configuration files, debugging structured data, validating payloads and converting JSON while away from your desktop. Your privacy matters. JSON Tools does not collect your data.
HTMLSource
View and edit the HTML source code of any website directly within Safari. This extension offers syntax highlighting, keyword searching, and immediate visual feedback for your edits.
- View HTML source code
- Edit HTML source code
- Immediate change preview
- HTML syntax highlighting
- Keyword searching in source
- Dark Mode support
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HTMLSource is a Safari Extension that helps you view and edit any website's HTML source code. Features: - View HTML source code - Edit HTML source code and see changes immediately Extras: - Dark Mode support - HTML syntax highlight - Keyword searching in HTML source code Steps to use HTMLSource: 1. Download HTMLSource from App Store 2. Open Safari 3. Go to any website 4. Click "Aa" or the Safari Extension icon in the search bar 5. Follow the instruction to enable HTMLSource 6. View or edit HTML source code
Screenshots
Verdict
The clearest difference is update cadence: HTMLSource at every 4 days against JSON Tools's every 2 weeks. On price, review sentiment, ads and in-app purchases 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
JSON Tools costs $0.99 and HTMLSource $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
JSON Tools ships an update every 2 weeks, HTMLSource every 4 days. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.
| Parameter | JSON Tools | HTMLSource |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | — | 3.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #114 | #94 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohammed Aadhil | Hao-Quan Liu |
Customer experience
JSON Tools
HTMLSource
In-app purchases
JSON Tools
No in-app purchases
HTMLSource
No in-app purchases
Questions
Is JSON Tools free?
Is HTMLSource free?
Do JSON Tools or HTMLSource have ads?
Which is updated more often, JSON Tools or HTMLSource?
Which is more popular, JSON Tools or HTMLSource?
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