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Whitespace and Duplicate Line Cleaner

Whitespace and Duplicate Line Cleaner

Remove unwanted whitespace and blank lines, deduplicate and sort lines, or change letter case in one pass.

Input
0 lines
Result
0 lines
Enter text to see the cleaned result
Operations

Key features

  • Optionally trims each line and collapses consecutive spaces.
  • Removes blank or duplicate lines while keeping the first duplicate.
  • Sorts lines ascending or descending with English locale comparison.
  • Changes all text to lower or upper case and can join lines into one.

How to use

  1. Paste the text you want to clean.
  2. Enable the whitespace, duplicate, sorting, and case options you need.
  3. Copy the cleaned result.

Examples

  • Clean a copied list

    Remove blank and duplicate lines, then sort entries in ascending order.

  • Normalize irregular whitespace

    Trim each line and collapse repeated spaces for consistent text.

Privacy

Text cleanup and sorting run in your browser.

Common questions

Is line order preserved when duplicates are removed?
Duplicate removal alone keeps the first occurrence and original order. Enabling sorting rearranges lines in the selected direction.
Can several cleanup options run together?
Yes. Combine trimming, collapsed spaces, blank-line and duplicate removal, case conversion, sorting, and line joining.