Remove Line Breaks
Remove all line breaks and join your text into a single line.
How to use this tool
- Enter text and replace with in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your result and the full breakdown beneath it.
Remove all line breaks and join your text into a single line.
How it works
This tool joins multi-line text into a single continuous line by removing all newline characters (both Unix LF and Windows CRLF line endings). You can optionally specify a replacement string — for example, a space or a comma — that is inserted where each line break was removed, so words at the boundary of two lines do not get merged together without separation.
Common uses include converting line-separated email text into a single paragraph for a CMS, transforming address fields that span multiple lines into a single database column, merging wrapped terminal output into a copyable one-liner, and preparing text for APIs that do not accept multi-line input.
If the Replace with field is left blank, line breaks are simply deleted. A single space is the most common replacement and prevents words from being run together at line boundaries.
Worked example
Merge a multi-line address into one line
- Paste address lines: '123 Main St', 'Springfield', 'IL 62701' on separate lines.
- Set Replace with: ', ' (comma-space).
- The tool replaces each newline with ', '.
- Read the single-line result.
123 Main St, Springfield, IL 62701
Common mistakes to avoid
- Leaving the replacement field empty when joining prose — this merges the last word of one line with the first word of the next without any separator.
- Using this on Markdown or code where newlines are structural — the output will lose its formatting.
- Not accounting for double newlines representing paragraph breaks, which may need a different replacement character than single newlines.
Key terms
- Line break
- A newline character (LF or CRLF) that causes the following text to start on a new line.
- Replacement string
- The text inserted at each position where a line break was removed; often a space, comma, or pipe character.
Frequently asked questions
- When should I remove line breaks?
- Removing line breaks is useful when pasting multi-line text into a field that only accepts a single line, such as spreadsheet cells or search boxes.