Duplicate Line Remover

Paste your text below and remove duplicate lines. Choose options for case-insensitive comparison, trimming whitespace, and whether to preserve the first occurrence order.

Input (one item per line)

Case-insensitive

Trim whitespace

Preserve first occurrence order

Output

Paste or type lines into the input box.
Choose whether comparisons should be case-insensitive and whether to trim whitespace.
Click "Remove Duplicates" to produce the cleaned list in the Output box.
Use Copy or Download to export the cleaned list.