Delete Duplicate LinesONLINE
YOUR EVERYDAY TEXT TOOLKIT

Remove Line Breaks

Turn a multi-line list into one clean line. You choose what goes between.

Local processing. No signup. Your text stays on your device.
YOUR TEXT WORKSPACE Runs locally in your browser

Or drop a .txt, .csv, .tsv or .log file · Up to 10 MB

Cleaning options

Make it your own
Your input is always preserved.

Ready when you are. Paste your text to get started.

The keepers

Plain text in. Clean text out. Nothing uploaded.

Original lines0
Unique lines0
Lines removed0
Duplicate rate0%
Input characters0
Input words0

One line, with the separator you need.

Replace physical line breaks with a space, a comma followed by a space, or your own separator. An empty custom separator joins lines directly. Duplicate items are preserved. This tool joins text as written; it does not quote or escape values for CSV, SQL, or programming languages.

Sort lines before joining them →

Get the result you expect

  • Use a comma and space for a readable inline list.
  • Use a custom separator such as | or ; for your own format.
  • Remove extra spaces collapses runs of whitespace, including spaces in your separator. Disable it to preserve exact spacing.

Files are read as UTF-8 text. CSV and TSV are handled by physical line, without parsing quoted records or columns. Input is limited to 10 million characters; uploads to 10 MB.