JSON Viewer

Transform raw JSON into something beautiful. JSON Viewer is a high-performance Chrome extension that makes JSON readable, navigable, and editable - right in your browser. ✨ FIVE VIEW MODES • Tree View - Collapsible nodes with syntax highlighting. Perfect for exploring nested structures. • Editor View - Full-featured JSON editor with line numbers, formatting, and validation. • Schema View - Visualize data types and structure at a glance. • YAML View - Instant JSON-to-YAML conversion for config files. • Raw View - Original JSON string with easy copy option. 🔍 POWERFUL SEARCH • Search across keys and values • Real-time highlighting as you type • Navigate matches with Enter / Shift+Enter • Regex support for advanced queries ⚡ PERFORMANCE OPTIMIZED • Lazy rendering - Only visible nodes hit the DOM • Batched processing - Prevents UI blocking on large files • View caching - Instant tab switching • Handles 100,000+ nodes smoothly 🛠️ DEVTOOLS INTEGRATION • Dedicated JSON Viewer panel in Chrome DevTools • Monitor network requests with JSON responses • Click any request to view formatted JSON • Filter requests by URL or content type ⌨️ KEYBOARD SHORTCUTS • Ctrl/⌘+F - Focus search • Ctrl/⌘+C - Copy JSON • Ctrl/⌘+S - Save to file • Ctrl/⌘+D - Toggle theme 🌙 WORKS EVERYWHERE • Auto-detects JSON in browser tabs • Supports JSONL and NDJSON files • Local files - Open .json files directly • Context menu - Right-click selected text → "View JSON Snippet" • Light & dark themes - Matches system preference 🔒 PRIVACY 100% offline. Your data is processed locally and never sent anywhere. No tracking. No analytics. No servers. Free. Open source. No ads. Just JSON, done right. https://github.com/kunalbabre/JsonViewer