Frequently Asked Questions
Does this preserve line order?
Yes. Duplicate lines are removed while preserving the original order of first occurrences.
Is the comparison case-sensitive?
Yes. Lines that differ only in case are treated as distinct and both are kept.
Is text processing private?
Yes. All transformations run in your browser only. No data is uploaded.
Example input/output
Input: apple
banana
apple
cherry
Output: apple
banana
cherry
How it works
The tool splits input into lines, removes lines that have already appeared, and outputs the deduplicated result in original order.
Common use cases
- Deduplicate lines in log files or import lists
- Remove repeated entries from a list before processing
- Clean up pasted content with accidental duplicate lines