Text Deduplicator
Remove duplicate lines from text, with option to keep blank lines
Input
Lines After Dedup
4
Lines Removed
2
Result
apple banana orange grape
Formula
Keep the first occurrence of each line, subsequent identical lines are removed
FAQ
Does dedup change line order?
No. This tool preserves the first occurrence order and removes subsequent duplicates, keeping original order intact.
Is dedup case-sensitive?
Yes. 'Hello' and 'hello' are treated as different lines. For case-insensitive dedup, use the case converter first.
Why keep blank lines?
Blank lines help maintain text structure and separation. Useful for grouping when deduplicating CSS classes or keyword lists.