Remove Duplicate Lines

Remove Duplicate Lines scans your text and deletes any line that appears more than once, keeping only the first occurrence. It is invaluable for cleaning up log files, merging lists from multiple sources, or deduplicating imported data.

Duplicate entries in configuration files or import lists can cause silent bugs — two identical API keys, two conflicting routes, or two rows with the same ID. Removing them before processing prevents those issues.

Tip: Sort the lines first for a cleaner result — it groups duplicates together and makes it easier to visually confirm what was removed.