JSON Viewer - Online JSON Formatter and Validator

View, edit, format, and validate JSON data with a split-pane editor featuring a live tree view. Prettify, minify, sort keys, flatten to dot-notation, and search through keys and values. Copy, open, and save JSON files.

Features

• Split-pane editor with raw text and interactive tree view
• Prettify JSON with configurable indentation
• Minify JSON to remove whitespace
• Validate JSON syntax with error highlighting
• Sort keys alphabetically
• Flatten nested objects to dot-notation and unflatten back
• Search through keys and values with match navigation
• Expand and collapse tree nodes
• Copy all JSON or individual values to clipboard
• Open and save JSON files