Powerful JSON formatter & visualizer with tree, raw & diagram views. Customizable themes, fonts & auto-detection for developers
Users
52
+2 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#107K
#89K among extensions
Version
1.0.3
updated 29 Sep 2025
Users
monthly, 18 months
Latest, 16 Oct 2026:52 usersMove the mouse over the chart for any month
Ratings count
monthly, 18 months
Latest, 16 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About JSON Viewer - Advanced Formatter
Transform raw JSON data into beautiful, interactive visualizations with automatic detection and customizable themes.JSON Viewer transforms complex JSON data into a beautifully formatted, interactive experience right in your browser. This powerful extension automatically detects JSON content on any webpage and instantly formats it for improved readability.
Key Features:
✅ Automatic Detection & Formatting - No more copying to external tools
✅ Three Visualization Modes - Tree view, Raw view, and Diagram view
✅ Customizable Themes - Light, Dark, VS Code, Monokai and more
✅ Color Preview - Visualize color values in your JSON strings
✅ Font Customization - Choose from multiple programming fonts
✅ One-Click Copy - Easily copy entire JSON or specific nodes
✅ Expand/Collapse Controls - Navigate complex nested structures with ease
✅ Performance Optimized - Handles large JSON files without slowing your browser
Perfect for:
• Developers testing API responses
• Data analysts exploring JSON datasets
• Backend engineers debugging outputs
• Anyone who works with JSON regularly
Simply navigate to any page containing JSON data, and JSON Viewer handles the rest. It's the elegant, efficient way to view and interact with JSON in your browser.