JSON Merge Tool

Merge two JSON objects or arrays with deep merge support. Combine JSON data with conflict resolution options for overlapping keys.

Input JSON Objects

Paste or type your JSON data to merge
🔧 All JSON Tools

Merged JSON Result

Combined JSON object

Features

  • 🔗 Deep merge JSON objects and arrays
  • ⚙️ Multiple merge strategies (deep, shallow, replace)
  • 📋 Array handling options (concatenate, replace, merge)
  • 🛠️ Conflict resolution for overlapping keys
  • 📊 Support for nested objects and complex structures
  • 📋 Copy merged result to clipboard
  • 💾 Download merged JSON as file
  • 🔒 Privacy-focused: no data sent to servers
  • ⚡ Real-time merging