JSONMASTER
Professional JSON, CSV, YAML, and XML visualizer, validator, and formatter.
As of June 2026, JSONMASTER has 4 users and a 5.00/5 rating from 2 reviews in the Developer Tools category.
Usersno change0%
4
4
Ratingno change0%
5.00
2 reviews
Reviewsup 100.0 percent+100.0%
2
Version
1.8
Manifest V3
History
8 snapshotsTracking since Apr 1, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 1, 2026 | — | 5.00 | 1 | 1.8 |
| Apr 9, 2026 | 6 | 5.00 | 1 | 1.8 |
| Apr 26, 2026 | 5 | 5.00 | 1 | 1.8 |
| May 9, 2026 | 4 | 5.00 | 1 | 1.8 |
| May 14, 2026 | 5 | 5.00 | 1 | 1.8 |
| May 21, 2026 | 6 | 5.00 | 1 | 1.8 |
| May 27, 2026 | 5 | 5.00 | 1 | 1.8 |
| Jun 3, 2026 | 4 | 5.00 | 1 | 1.8 |
| Now | 4 | 5.00 | 2 | 1.8 |
Permissions & access
- Permissions
- activeTabclipboardReadcontextMenusstorage
- Host access
- None declared
Screenshots
About
Visualize your JSON, YAML, XML and TOON file with just one right click JSONMASTER is the ultimate developer companion for working with data. Whether you are debugging APIs, analyzing configuration files, or exploring complex datasets, JSONMASTER turns raw text into a beautiful, interactive graph in seconds. Key Features: 💎 Powerful Visualization: Instantly convert JSON, YAML, CSV, and XML into highly interactive, zoomable tree graphs. 🛠️ Smart Auto-Repair: Paste broken or malformed JSON? JSONMASTER's intelligent analyzer fixes common syntax errors automatically. 🔍 Deep Exploration: Navigate deeply nested objects with ease using our high-performance rendering engine that handles even massive datasets. ⚡ One-Click Detection: Right-click anywhere on the web to instantly visualize selected data or the entire page. 🎨 Modern Dark Mode: Designed for developers with a premium, high-fidelity interface that supports both light and dark themes.
Technical
- Version
- 1.8
- Manifest
- V3
- Size
- 29.69KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- dkoefpcocomnbjldbalhjdfcmhpaaibi
- Developer ID
- u7afa82ab9f8d3b9d9e8c3d2a8cee8245
- Developer Email
- [email protected]
- Created
- Feb 27, 2026
- Last Updated (Store)
- Feb 27, 2026
- Last Scraped
- Jun 3, 2026
- Website
- jsonmaster.com
- Support URL
- https://jsonmaster.com
- Privacy Policy
- http://jsonmaster.com/privacy
Similar extensions
Alternatives to JSONMASTER, ranked by description similarity.
JSON Master Suite
Premium JSON Formatter & Viewer
—
JSON Viewer - Advanced Formatter
Powerful JSON formatter & visualizer with tree, raw & diagram views. Customizable themes, fonts & auto-detection for developers
57
NextJSON - JSON Parser, Editor, and Formatter
Format, edit, and explore JSON — tree view, graph visualization, JQ queries, diff, and URL fetch. Fully local, zero data sent.
62
★ 5.0
JSON Viewer Pro
A completely free extension to visualise JSON response in awesome Tree and Chart view with great user experience and options. It…
300.0K
★ 4.7
JSON Formatter
Automatically formats and displays JSON responses in a collapsible tree view with syntax highlighting
23
★ 5.0
JSON Magic
Instant pretty-print, validate & download JSON without leaving your tab.
6
DataFormat Pro
Format, validate, and convert structured data easily within your browser.
10
★ 4.7
JSON MASTER - Offline JSON Beautifier & Viewer
Format and display JSON with color scheme and language switching
46
★ 5.0
Data sourced from the Chrome Web Store · last verified Jun 3, 2026.