JSON Duplicates Finder

Find and remove duplicate objects or values in JSON arrays. Advanced duplicate detection with custom comparison criteria and comprehensive analysis.

Input JSON

Paste your JSON array with potential duplicates
🔧 All JSON Tools
Detection Method
Options

Results

Duplicate analysis and cleaned data

Features

  • 🔍 Advanced duplicate detection algorithms
  • 🎯 Custom comparison criteria (specific keys, full objects, primitives)
  • 📊 Comprehensive duplicate statistics and analysis
  • 🔄 Deep vs shallow object comparison options
  • ⚙️ Configurable keep mode (first/last occurrence)
  • 🗑️ Remove duplicates or just highlight them
  • 📈 Performance optimization for large datasets
  • 📋 Export cleaned JSON or duplicates-only data
  • 🔒 Privacy-focused: no data sent to servers
  • ⚡ Hash-based duplicate detection for speed