A line break (newline character) breaks text into multiple lines. Removing it is essential when you need a continuous string, such as for CSV data, JSON values, or when pasting into software that doesn't support multi‑line input. This tool instantly converts your text into one seamless line.

It detects double line breaks (empty lines) as paragraph boundaries. Inside each paragraph, single line breaks are replaced with spaces, keeping words together. You can then choose how to separate the paragraphs—by default with two newlines, but you can also select a custom separator like "¶" to clearly mark paragraph ends.

Yes. In “Remove all line breaks” mode, choose “None (direct join)” from the replace dropdown. All line breaks will be stripped with no replacement, directly joining the lines end‑to‑end.

When enabled, any line that contains only whitespace (spaces, tabs) or is completely blank is removed before conversion. This helps to clean up messy input where multiple blank lines would otherwise become a sequence of spaces.

Absolutely. All processing happens directly in your browser using JavaScript. Your text never leaves your device—no data is uploaded, saved, or shared with any server.