Remove Duplicate Lines – Online Text Deduplicator
Remove duplicate lines from any text list online. Options to ignore case, trim whitespace, drop empty lines and sort the result. Shows how many lines were removed. Copy or download the clean list — everything runs in your browser.
Remove duplicate lines
Paste text or a list — duplicates are removed as you type, original order preserved by default.
0Total lines
0Unique lines
0Duplicates removed
Deduplication compares full lines after applying the selected options; the first occurrence is always kept. “Ignore case” treats Hello and hello as the same line, while the original casing is kept in the output. Your text never leaves the browser.