JSON Editor Online - Edit, Format & Validate JSON Free

Professional JSON editor with syntax highlighting, real-time validation, formatting, and tree view. Edit JSON with confidence.

Enter valid JSON to see tree view
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✨ Formatting Features

  • Beautify - Format with proper indentation
  • Minify - Compress to single line
  • Sort Keys - Alphabetically order keys
  • Custom Indent - 2 or 4 space indentation

🛡️ Validation

  • Real-time - Validates as you type
  • Error Details - Line number & description
  • Syntax Check - Catches all JSON errors
  • Visual Feedback - Clear status indicators

🔧 Editing Tools

  • Undo/Redo - Full history support
  • Find & Replace - Search and replace text
  • Line Numbers - Easy navigation
  • Keyboard Shortcuts - Power user support

📁 Import/Export

  • File Import - Load .json files
  • File Export - Download as .json
  • Copy - One-click clipboard copy
  • Sample Data - Load example JSON

🔧 Related JSON Tools

📝 JSON Formatter

Format & beautify JSON

 🌳 JSON Tree Viewer

Collapsible tree view

🔍 JSON Diff

Compare two JSON files

 📐 JSON Schema Validator

Validate against schema

JSON Editor FAQ

What is a JSON editor?

A JSON editor is a tool for creating, editing, and managing JSON data with features like syntax highlighting, validation, and formatting.

Does this editor validate my JSON?

Yes, real-time validation highlights errors with line numbers and descriptions as you type.

Can I format and minify JSON?

Yes, click Format to beautify with proper indentation, or Minify to compress into a single line.

Does the editor support undo and redo?

Yes, full undo/redo history. Use Ctrl+Z to undo and Ctrl+Y to redo.

Can I import and export JSON files?

Yes, import .json files directly and export/download your edited JSON as a file.

Is this JSON editor free?

Yes, 100% free with no signup required. All editing happens in your browser.