Duplicate Line Remover
Keep the first occurrence of each line while preserving the original order.
Runs in your browser. No signup or cloud computer.
16 / 100,000
Result
Your result will appear here. The input stays in this browser tab.
How to use it
Paste one item per line to remove exact duplicate lines from a list.
Try this example
alpha beta alpha
What to check
Whitespace and letter case are significant; near-duplicates remain separate.
Review the result before using it in a published page, application, or agent configuration.
Related free tools
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