JSON Viewer Chrome Extension
JSON Viewer, support tree view, formatted beautiful text view, a most beautiful and customizable JSON/JSONP highlighter
As of May 2026, JSON Viewer Chrome Extension has 228 users and a 4.00/5 rating from 2 reviews in the Developer Tools category.
Usersdown 2.1 percent−2.1%
228
228
Ratingno change0%
4.00
2 reviews
Reviewsno change0%
2
Version
0.0.1
Manifest V3
History
2 snapshotsTracking since Apr 24, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 24, 2026 | 233 | 4.00 | 2 | 0.0.1 |
| May 21, 2026 | 222 | 4.00 | 2 | 0.0.1 |
| Now | 228 | 4.00 | 2 | 0.0.1 |
Permissions & access
- Permissions
- activeTabstoragescripting
- Host access
- None declared
Screenshots
About
A clean and powerful JSON viewer extension for Chrome with tree view and text view support. ## Features - 🌲 Tree View: Collapsible tree structure for better JSON visualization - 📝 Text View: Traditional text view with line numbers and code folding - 🎨 Dark/Light Theme: Seamless integration with Chrome themes - 🔍 Long String Handling: Automatically truncates long strings with expandable view - 📊 Object Size: Shows the number of items in arrays and objects - 🔗 URL Detection: Automatically converts URLs to clickable links - ⌨️ Keyboard Friendly: Easy navigation and interaction - 🎯 Line Numbers: Clear line numbers with folding indicators - 🚀 Performance: Handles large JSON files smoothly ## How to Use 1. Open a JSON file in Chrome 2. Click the "Open JSON Viewer" button in the editor title bar, or: 3. Right-click in the editor and select "Open in JSON Viewer" 4. Use the toolbar buttons to: - Switch between Tree and Text views - Toggle dark/light theme - Expand/collapse all nodes in tree view - Click on line numbers to fold/unfold sections in text view - Click on truncated strings to expand/collapse them ## View Modes ### Tree View - Hierarchical visualization of JSON structure - Click on arrows (▶/▼) to expand/collapse nodes - Shows array/object sizes - Hover effects for better readability ### Text View - Traditional JSON text representation - Line numbers with folding capability - 4-space indentation - Long string truncation with expandable view - Syntax highlighting ## Demo https://microsoftedge.github.io/Demos/json-dummy-data/64KB.json
Technical
- Version
- 0.0.1
- Manifest
- V3
- Size
- 25.88KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- kggkmmjihpjangbkpcdidlhfbnnfaldn
- Developer ID
- uf46ab05da7dc7114962abfb079baf71d
- Developer Email
- [email protected]
- Created
- Jan 7, 2025
- Last Updated (Store)
- Jan 9, 2025
- Last Scraped
- May 21, 2026
- Website
- oslook.com
- Support URL
- —
- Privacy Policy
- —
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Data sourced from the Chrome Web Store · last verified May 21, 2026.