Remove Duplicate Lines
Keep one copy of each unique line.
Tidy pasted text by trimming line edges, collapsing repeated spaces and tabs, or removing empty lines. Review the cleaned copy before using it.
Preparing your tool…
The cleaner normalizes CRLF and CR line endings to newlines. Trimming removes whitespace at each line edge. Collapsing replaces runs of spaces, tabs and non-breaking spaces with a single space while preserving paragraph newlines. Empty-line removal is optional and off by default. These mechanical edits can change indentation, so avoid applying them to source code or preformatted content without review. Text is not uploaded or saved.
Not by default. Empty-line removal is optional; ordinary line breaks remain.
No. It changes whitespace only.