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text · lines
Deduplicate Lines
Removes repeated lines and keeps the first occurrence of each, in the original order. Exact match — whitespace and case count, so "Acme" and "acme" are different lines.
A little guidance. A better result.
How to use Deduplicate Lines
Drop repeated lines, keep the first occurrence, preserve order — exact match, case and whitespace count.
Prepare your input
Paste one entry per line.
Use the workspace
Review the output keeping each line's first occurrence.
Check your result
Check order and count before saving.
Know the limits
Matching is exact: case and whitespace can make apparently similar lines different.
Where does my input go?
This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.
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