Data Dedupe Tool
Batch remove duplicate data online
📖 User Guide Click to view detailed usage instructions
Collapse Expand
📖 User Guide
Click to view detailed usage instructions
Features
Free online data deduplication tool. Help users quickly remove duplicate data. Supports case sensitivity option and trim whitespace with duplicate count statistics.
Main Features
1. Smart Deduplication
Automatically detect and remove duplicate data
2. Case Sensitivity
Optional case-sensitive deduplication
3. Trim Whitespace
Optional trim whitespace before deduplication
4. Duplicate Statistics
Display duplicate items and their frequency
5. Multiple Output Formats
Supports unique only, duplicates only, both three output formats
How to Use
- Enter data to deduplicate
- Set options (case sensitivity/trim whitespace)
- Select output format
- View processing results
Use Cases
- Data Cleaning: Remove duplicate data records
- List Organization: Organize non-repeating lists
- Vote Statistics: Count non-repeating votes
- Data Deduplication: Clean up duplicate entries
FAQ
Which ones are kept after deduplication?
The tool keeps the first occurrence and marks subsequent duplicates.
How is deduplication rate calculated?
Deduplication rate = (Original count - Unique count) / Original count × 100%