Text Deduplicator
Paste lines to keep the first occurrence of each value and see duplicate counts.
A QUICK WALKTHROUGH
How to use this tool
- Paste up to 200,000 characters of text.
- Choose case and whitespace handling.
- Run deduplication and copy the ordered result.
Stable first occurrence
Each comparison key is seen in input order; the first retained line determines output order and spelling.
GOOD TO KNOW
Common questions
Is text uploaded?
No, processing happens locally in your browser.