Remove duplicate lines
Clean up a list by removing repeated lines. Keep the first occurrence, in its original order.
0 / 500,000 characters
First occurrence kept
Nothing leaves this page
How it works & useful details
A cleaner list in one step
Paste one item per line, select Remove duplicates, then copy or download your result. The first occurrence of every line stays in place.
What counts as a duplicate?
Matching is case-sensitive and preserves spaces. “Apple” and “apple” remain separate. Repeated blank lines become one blank line. Line endings are normalized to LF.
Up to 500,000 characters per run. Your text is never uploaded.