✍️ Text & Writing
Remove Duplicate Lines
Remove Duplicate Lines turns multiline text into a unique list. You can compare case-insensitively, trim line edges first, and choose whether to keep first-seen order or sort the output.
How to use
- Paste a line-by-line list into the input area.
- Enable case-insensitive matching and trimming if needed.
- Choose original order or sorted output.
- Copy the unique line list when ready.
Use cases
- Clean duplicate names or emails from a signup list.
- Prepare keyword, tag, URL, or product SKU lists.
- Deduplicate rows that differ only by capitalization.
Privacy & local processing
Lists are deduplicated locally in your browser and are not uploaded.
FAQ
- Does case-insensitive mode change the output text?
- No. It only changes the comparison key. The output keeps the first matching line text.
- Does trimming affect the output?
- Yes. When trimming is enabled, the output uses the trimmed line, which is useful for spreadsheet paste cleanup.
- Are blank lines kept?
- Blank lines are ignored because the tool is designed to produce a usable unique text list.
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