5 min read
2026-03-01
Duplicate rows in data are a common problem. Duplicates increase the volume, distort statistics and complicate analysis.
| Function | Description |
|---|---|
| Removing Exact Duplicates | Removes completely matching lines |
| Register accounting | Optional: “Moscow” and “Moskva” - duplicates or not |
| Keeping things organized | The original order of the first occurrences is preserved |
| Counting deleted | Statistics on the number of duplicates found |
Paste text with duplicate lines
Configure parameters (case, spaces)
Click "Remove Duplicates"
Get a clean list
Ignore spaces — spaces at the beginning and end of the line are not taken into account
Ignore case — comparison without taking into account uppercase/lowercase letters
Ignore empty lines — empty lines are automatically deleted
Merge multiple lists of email addresses
Export data from multiple sources
Logs with duplicate entries
Lists of products from different catalogs
See also: Sorting Strings, Word Count, Find and Replace