Remove Duplicate Lines from Text
Instantly remove duplicate lines from any text. Perfect for cleaning up email lists, keyword lists, log files, and any line-based data.
Most current tools process data directly in your browser. If a tool requires external processing, it will say so clearly.
How to Remove Duplicate Lines
- 1Paste your text with duplicate lines into the input area
- 2Choose whether the comparison should be case-sensitive
- 3Click 'Remove Duplicates' or see results automatically
- 4Copy the cleaned output to your clipboard
Key Benefits
- Removes duplicates while preserving original order
- Case-sensitive and case-insensitive modes
- Shows count of removed duplicates
- Works with any size list
Frequently Asked Questions
Does removing duplicates preserve the order?
Yes, the tool keeps the first occurrence of each line and removes subsequent duplicates, preserving the original order of unique lines.
Is the comparison case-sensitive?
By default, yes. You can toggle to case-insensitive mode where 'Hello' and 'hello' would be treated as duplicates.
Can I remove duplicate words instead of lines?
This tool removes duplicate lines. For word-level deduplication, you would need to first split words onto separate lines, then use this tool.