JSON Viewer Pro
Format, validate, and explore JSON data with syntax highlighting, tree view, and powerful tools
📋 Format JSON
✓ Validate
🌳 Tree View
📊 Minify
🔍 Search
📥 Import
📤 Export
Paste JSON
Fetch from URL
Upload File
📝 Posts API
👥 Users API
💬 Comments API
⚛️ React Repo
🐙 GitHub User
Drop JSON file here
or click to browse
Supported: .json files
JSON Editor
Lines: 0
Tree View
Nodes: 0
Size: 0 B
📋
Multiple Input Methods
Paste JSON directly, fetch from any API URL, or upload .json files
🌳
Interactive Tree View
Collapsible tree navigation with syntax highlighting
🔧
Format & Validate
Pretty-print, minify, and validate JSON with detailed error messages
📊
Statistics
View node count, file size, and structure details
Frequently Asked Questions
🔒 Is my data private?
Yes! All processing happens locally in your browser. No data is ever sent to any server.
🌐 Can I fetch from any URL?
Yes, but the API must support CORS. Public APIs like GitHub, JSONPlaceholder work great.
📂 What file types?
.json files are supported. Files are read locally and never uploaded.
🆓 Is it really free?
100% free forever. No registration, no hidden costs, no limits.