Remove Line Breaks Online

Removing line breaks from text, explained

A line break is an invisible character — or pair of characters — that tells software to start a new line. When you copy text from a PDF, an email, a chat message, or a code editor, those invisible characters come along for the ride. Paste the result somewhere that expects a single flowing paragraph and you get a jagged column of short lines instead. This tool strips those breaks out and lets you decide what goes in their place.

CR, LF, and CRLF: the three kinds of line break

Not all line breaks are the same character, which is why a "find and replace newline" in one app sometimes misses breaks made in another:

• LF (line feed, \n) — used by macOS, Linux, and the modern web.
• CRLF (carriage return + line feed, \r\n) — used by Windows and most Windows-created text files.
• CR (carriage return, \r) — used by very old Mac software; rare today but still turns up in legacy exports.

This tool detects all three and removes them, so you never have to know which one produced your text. That matters most when you are combining text from multiple sources — a Windows spreadsheet, a Mac email, and a Linux server log can each use a different break character in the same paste.

The most common reasons people remove line breaks

• Copied from a PDF. PDFs hard-wrap every visual line. Rejoining with spaces rebuilds the paragraph so you can quote it, translate it, or re-flow it.
• Building a list for code or spreadsheets. Turn a column of values into a comma-separated row for a SQL IN() clause, a CSV cell, or a config array.
• Cleaning email or chat exports. Email clients insert soft wraps at ~70 characters; removing them gives you clean, re-flowable prose.
• Fixing word-wrapped code comments. Long comments wrapped by an old editor can be rejoined and re-wrapped to your current line width.

Replace with a space, a comma, or nothing?

The right replacement depends on your goal. Use a space when you are rejoining sentences that were split mid-paragraph — without it, the last word of one line would fuse into the first word of the next. Use a comma(or ", ") when each line is a discrete item you want as a list. Use nothing only when the breaks sit inside a single token that was wrapped, such as a long URL or a base64 string, where any inserted character would corrupt the value.

Re-joining happens on your machine

A pasted paragraph is frequently more sensitive than it looks — contract language, unreleased copy, internal notes, or source code. Because this cleaner does its work as a local string replacement, the only place your text exists is the tab in front of you. There is no upload step to wait on either, so even a copied chapter re-flows the instant you change a separator, limited only by what your browser can hold in memory.

Related text tools

• Remove Duplicate Lines — strip repeated lines before or after joining.
• Find and Replace — for more precise substitutions than a blanket line-break swap.
• Word & Character Counter — check the length of the cleaned-up result.
• Sort Lines — alphabetize or order a list before collapsing it into one line.