Duplicate Line Remover
Remove repeated lines from a list, keeping the first occurrence, with case and trim options. Free, instant, in your browser.
Remove duplicate lines
Paste a list to remove repeated lines, keeping the first occurrence.
Features
Common use cases
- 1De-duplicating a list
- 2Cleaning log or export data
- 3Removing repeated keywords
- 4Tidying a merged list
- 5Preparing unique values
- 6Cutting redundant rows
Related tools
About removing duplicate lines
Merged or exported lists often contain duplicate lines that skew counts and clutter data. This tool keeps the first occurrence of each line and removes the rest, preserving order.
Choose case-sensitive or case-insensitive matching and whether to trim whitespace before comparing, then copy the de-duplicated result. Everything runs in your browser.
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Got Questions? We Have Answers.
How does it remove duplicates?
It keeps the first occurrence of each line and drops the rest, preserving order. You can ignore case and trim whitespace before comparing.
Does it show how many were removed?
Yes — input, unique and removed counts are shown.
Is my list uploaded?
No. It all runs in your browser.
Can it also sort?
No — pair it with the Line Sorter if you need sorting too.