Remove Duplicate Lines
Clean duplicate lines from any list or text while keeping the original order.
About this tool
Duplicate entries creep into every list — email lists, keyword lists, URLs, CSV exports. Removing them by hand is error-prone. This tool deletes duplicate lines in one click while preserving the original order of first appearances, and shows you how many duplicates were removed.
How to use
- 1 Paste your list or text, one item per line.
- 2 Click Remove Duplicates.
- 3 Copy the cleaned list from the result box.
Why use this tool
- Keeps the first occurrence and original order — no unwanted sorting.
- Perfect for keyword lists, emails, URLs and data cleanup.
- Handles thousands of lines instantly in your browser.
Frequently asked questions
Is the comparison case-sensitive?
Yes — "Apple" and "apple" are treated as different lines. Run your list through the Case Converter first if you want case-insensitive deduplication.
Does it change the order of my list?
No. The first occurrence of each line stays in its original position; only later duplicates are removed.
Is my list uploaded anywhere?
No — processing is 100% local in your browser, so it is safe even for sensitive lists.
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By the SkillNexy Team · Last updated: 2026-07-12 · 100% free · Runs locally in your browser — nothing is uploaded.