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Description
Format and validate JSON with tree view, dark mode, instant syntax highlighting. Free, instant, no account needed. JSON Formatter Pro automatically detects and formats JSON responses in your browser with beautiful syntax highlighting. FEATURES: Auto-Detection & Formatting - Automatically detects JSON content on any page and formats it instantly - No need to copy-paste into external tools Syntax Highlighting - Color-coded JSON with distinct colors for strings, numbers, booleans, null values, and keys - Makes large JSON payloads easy to scan and read Tree View - Collapsible/expandable tree structure for navigating complex nested JSON - Click any node to expand or collapse its children JSON Path Display - Hover over any value to see its full JSON path (e.g., $.data[0].name) - Click to copy the path to your clipboard Dark & Light Themes - Beautiful dark mode (default) and light mode - Your preference is saved automatically Customizable Indentation - Choose between 2 spaces, 4 spaces, or tab indentation - Settings persist across browser sessions 100% Local Processing - All JSON formatting happens entirely in your browser - No data is ever sent to any server - No tracking, no analytics, no data collection whatsoever PERFECT FOR: - API developers inspecting REST/GraphQL responses - QA engineers debugging API calls - Data analysts reviewing JSON datasets - Anyone who works with JSON regularly Lightweight, fast, and privacy-focused. JSON Formatter Pro is the only JSON viewer you'll ever need.