Deduplicate Calculator
Deduplicate data online
📖 User Guide Click to view detailed usage instructions
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📖 User Guide
Click to view detailed usage instructions
Features
Free online deduplication calculator. Help users quickly deduplicate data. Supports comma, space, newline and other separators, while displaying duplicate items and frequency.
Main Features
1. Flexible Input
Supports comma, space, newline and other separators
2. Deduplication Statistics
Automatically count unique items after deduplication
3. Duplicate Detection
Automatically detect and display duplicate items and frequency
4. Multiple Output Formats
Supports unique only, duplicates only, both three output formats
5. Deduplication Rate
Display quantity before/after deduplication and deduplication rate
How to Use
- Enter data to deduplicate (comma, space or newline separated)
- Select output format
- View processing results
Use Cases
- Data Cleaning: Remove duplicate data
- List Organization: Organize non-repeating lists
- Vote Statistics: Count non-repeating votes
- Data Deduplication: Clean up duplicate records
FAQ
Which ones are kept after deduplication?
The tool will keep all unique items, and duplicate items will also be listed with their frequency.
How is deduplication rate calculated?
Deduplication rate = (Original count - Unique count) / Original count × 100%