Format, beautify & validate JSON with syntax highlighting.
Users
6
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#240K
#201K among extensions
Version
1.0.0
updated 23 Jan 2026
Users
monthly, 9 months
Latest, 16 Oct 2026:6 usersMove the mouse over the chart for any month
Ratings count
monthly, 9 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 Formatter - Beautify & Validate
JSON Formatter is a powerful tool to format, beautify, and validate JSON data instantly.
✨ FEATURES:
• Format & beautify JSON with one click
• Syntax highlighting with 8 beautiful themes
• Search text within JSON
• Filter by key names
• Compare two JSONs side-by-side with diff highlighting
• Flatten nested JSON to dot notation
• Unflatten back to nested structure
• Click any value to see its JSON path
• Collapse/expand nested objects and arrays
• Drag & drop JSON files
• Import JSON files from your computer
• Sort keys alphabetically
• Copy formatted JSON to clipboard
• Download as .json file
• Auto-formats on paste
• Remembers your last JSON
🎨 8 COLOR THEMES:
• GitHub Dark (default)
• Dracula
• Monokai
• One Dark
• Nord
• Solarized Dark
• Material
• Night Owl
⌨️ KEYBOARD SHORTCUTS:
• Ctrl+Enter - Format JSON
• Ctrl+Shift+C - Copy output
• Ctrl+Shift+X - Clear all
• Escape - Exit fullscreen/compare mode
📋 HOW TO USE:
1. Click the extension icon to open
2. Paste your JSON (auto-formats!)
3. Use Search to find values
4. Use Filter to show specific keys
5. Click Copy or Download to export
Perfect for developers, data analysts, QA engineers, and anyone working with JSON data!