Remove Duplicate Lines
Delete repeated lines from a list while keeping the original order, with case and whitespace options.
About Remove Duplicate Lines
This tool removes duplicate lines from a list and keeps only the unique lines, in their original order. Paste your list with one item per line, choose whether differences in capital letters or extra spaces should count, and copy the result. The first occurrence of each line is kept.
It is a quick way to dedupe email lists, phone numbers, keywords, product codes or names before pasting them into Excel, Word or a text editor, without needing formulas or Notepad++. It handles long lists, is free, needs no sign-up, and your data stays in your browser.
How to use Remove Duplicate Lines
- Paste your list with one item per line.
- Choose whether “Delhi” and “delhi” count as the same.
- Copy the unique lines — the first occurrence of each is kept.
Frequently asked questions
Is the original order kept?
Yes. The first time a line appears it is kept in its original position; later repeats are removed.
What does “Trim spaces” change?
With trimming on, “ Pune” and “Pune ” are treated as the same line, and the output lines are trimmed. Turn it off to compare lines exactly as typed.
Is there a size limit?
No fixed limit. Lists with hundreds of thousands of lines work, depending on your device memory.
How do I remove duplicate lines from text?
Paste the text with one item per line and the duplicates are removed instantly, keeping the first copy of each line.
Can I remove duplicates from an Excel column here?
Yes. Copy the column, paste it here, then copy the unique lines back into Excel.
How many duplicates were removed?
The tool shows how many lines you started with and how many unique lines remain.
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