Remove Duplicate Lines
Strip out duplicate lines from any text — keep only the unique ones.
0 unique lines
How It Works
The tool reads your lines, normalizes them based on your options, and keeps only the first occurrence of each unique line. Order is preserved.
FAQ
Is the order preserved?
Yes — the first occurrence of each unique line keeps its original position.
Case-sensitive?
By default yes. Toggle case-insensitive to treat "Apple" and "apple" as duplicates.
Whitespace handling?
By default leading/trailing whitespace is trimmed before comparison.
Limit?
No practical limit for typical lists.
Saved?
No, runs in browser.
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