How to use the Line Break Remover
1. Paste multi-line text into the left panel.
2. Choose what to replace line breaks with: a space, comma, pipe, nothing, or a custom string.
3. Copy the resulting single-line (or custom-separated) output.
What is it?
Removing line breaks is one of the most common text processing tasks: converting a multi-line list into a comma-separated string for a SQL IN clause, joining lines for a single-line log entry, or converting address lines into a single-line address field. Copy-pasted text often has unwanted newlines that break form inputs or API calls.
This tool replaces every newline character (both \n and \r\n) with your chosen replacement. The most common choices are a space (to join words), a comma (to build lists), or nothing (to completely concatenate lines).
Example
The quick brown fox jumps over the lazy dog and runs away quickly
The quick brown fox jumps over the lazy dog and runs away quickly
Common uses: building SQL IN clauses, joining list items, or cleaning up copy-pasted address blocks.
Benefits
Join multi-line text into a single line for API parameters
Many URL parameters, SQL values, and API fields must be single-line strings — line breaks cause parsing failures or truncation.
Remove hard-wrapped line breaks from PDF-copied text
PDF text often contains mid-sentence line breaks — remove them to restore flowing prose for editing or processing.
Flatten multi-line content for .env file values
.env files require single-line values — join multi-line JSON, certificates, or config strings before adding them.
Prepare text for CSV fields that cannot contain line breaks
Unquoted line breaks inside CSV fields break parsers — remove them before creating or importing CSV data.
Frequently asked questions
Why does my text have both \r\n and \n?
Windows uses \r\n (CRLF) as the line ending, while Unix/macOS uses \n (LF). This tool handles both — all line endings are replaced with your chosen separator regardless of origin.
How do I join lines into a SQL IN clause?
Paste your list of values, choose the comma separator, then manually add the surrounding SQL: IN ('value1', 'value2', ...). Or use the pipe separator for other formats.
What if I want to replace only some line breaks?
This tool replaces all line breaks. For selective replacement, use a code editor's find & replace with regex, where you can target specific patterns like blank lines (^\s*$).