Text Tools
Remove Duplicate Lines
Quickly deduplicate line-based text while preserving order of first occurrence.
How to Use
- Paste one item per line.
- Choose case-sensitive or insensitive matching.
- Copy unique lines from the output.
Examples
Email list
Remove duplicate emails from an exported list.
Read the full guide
How to Use Remove Duplicate Lines: Complete Guide (2026) — 5 min read
Frequently Asked Questions
- Is blank line order kept?
- Empty lines are treated as lines; duplicates can be removed too.