How it works
- Input. Paste your content or drop a supported file.
- Options. Adjust the options for the result you need.
- Process. Run the tool, then copy or download the result.
Clean lists
Remove duplicate lines
Removes repeated rows from a column or list, just like in Excel.
TXT, CSV, TSV, JSON or MD · UTF-8 · up to 10 MiB. Each input, including files: up to 500,000 code points.
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Clean lists
How it works: Remove duplicate lines
Remove repeated lines from pasted lists without opening a spreadsheet or writing a formula. The first occurrence stays in place, and you can choose whether capitalization should count as a difference.
Input → Result
Input
Alice Bruno Alice
Result
Alice Bruno
Common uses
- Clean contact, SKU or keyword lists
- Remove repeated survey answers before analysis
- Prepare unique values for Excel or Google Sheets
Formats and limits
- The first occurrence is retained. Trimming and case matching determine which lines count as duplicates; sorting changes the original order.
- Use one item per line. A CSV record containing a quoted line break must be parsed as a table first.
2026-10-07