Duplicate Line Remover

Remove duplicate lines from lists, logs, or any pasted text.

Current lines: 0

When to use a duplicate remover

Duplicate entries are common in data workflows: exports from analytics tools may include repeated rows when merging datasets, mailing lists can accumulate duplicates from multiple sign-up sources, and logs frequently contain recurring lines that obscure unique events. A simple duplicate removal step can improve accuracy and readability without changing the original order meaningfully.

FAQ

Yes—the deduplication compares trimmed lines so that leading/trailing spaces don’t create distinct entries. Internal spacing is preserved.

This tool edits the textarea in place. To be safe, copy your original text to a secondary location before running bulk edits. We can add an undo feature on request.

Yes, the first occurrence of each unique line is kept in its original order. Only subsequent duplicates are removed.

No, all processing happens instantly in your browser. Your text is never sent to a server or stored.