Remove Line Breaks Tool
Remove, replace, or clean up line breaks in text in bulk. Useful for fixing text copied from PDFs or Excel where breaks appear mid-word, or for preparing text for CSV cells and single-line logs. It can also convert line endings (CRLF/LF/CR).
What the remove line breaks tool does
This tool strips stray line breaks out of a block of text, or swaps them for whichever separator you actually want. Text copied from a PDF, an Excel column, or a web page often looks like a tidy paragraph on screen, but underneath it a line-ending character was inserted at every visual wrap point. Leave those hidden breaks in place and a search-and-replace can miss text that should have matched, or a CSV/log line can end up split across several rows.
As background, a line ending can be written three different ways depending on the operating system that produced the file: LF (\n), CR (\r), or CRLF (\r\n). Whichever one your pasted text uses, the tool detects it automatically and lets you pick from four modes — remove everything, replace with spaces, collapse only the blank lines, or convert the line ending outright — so you only have to think about the outcome you want.
How to use the remove line breaks tool
- Paste the original text Paste text that contains line breaks into the "Input text" box. It doesn't matter whether it came from a PDF, Excel, an email, or anywhere else.
- Pick a conversion mode Choose "Remove all", "Replace with spaces", "Collapse blank lines only", or "Convert line endings" depending on what you need.
- Set the extra options if needed "Remove all" mode offers a space-insertion option to stop words from merging together; "Convert line endings" mode lets you pick LF, CRLF, or CR as the output.
- Check the result The "Converted text" box on the right updates instantly, along with a line count and character count so you can confirm what changed.
- Copy it into place Click "Copy" to send the result straight to your clipboard, then paste it into a CSV, chat window, or code editor.
Tips for getting more out of it
- Text copied from PDFs or Excel often has line breaks inserted mid-word due to column width. Enable the insert space option in "Remove all" mode to join everything into one line without merging words together.
- Multi-line text pasted into a CSV cell can confuse some parsers and break the cell boundaries. Use "Replace with spaces" mode first to convert breaks into spaces before pasting.
- If a copied blog post or draft ends up with many consecutive blank lines, "Collapse blank lines only" keeps paragraph breaks intact while removing the extra empty lines.
- When you need a true single-line string (Slack notifications, API parameters, etc.), use "Remove all" mode to strip every line break completely.
- The converted text appears in a read-only output box, so you can safely hit "Copy" and paste it elsewhere without accidentally editing it first.
When to use the remove line breaks tool
Turning PDF text back into flowing paragraphs
Text copied out of a PDF is usually hard-wrapped at the end of every line; "Remove all" with the space option restores it to one readable paragraph.
Cleaning up spreadsheet or CSV cells
Multi-line notes pasted into a single cell can break the file when it's read elsewhere, so converting the breaks to spaces first keeps things safe.
Building a single-line string for Slack or an API
Fields that can't contain a line break — chat webhooks, query parameters, and the like — need everything joined onto one line first.
Tidying up a pasted blog draft
When copying a draft leaves behind long runs of blank lines, "Collapse blank lines only" removes the excess while keeping the paragraph structure intact.
Preparing a Windows file for a Unix server
Convert CRLF line endings to LF before using the text as a shell script or a config file on a Linux box.
Line break glossary
- Line ending
- The control character (or pair of characters) stored in a text file to mark where one line ends and the next begins. It's invisible on screen but very much present in the file's bytes.
- LF (Line Feed)
- A single character, \n, used as the line ending on Unix, Linux, and macOS.
- CR (Carriage Return)
- A single character, \r, used on its own by classic Mac OS versions before OS X. It's rarely seen alone today but remains available as a choice for legacy data.
- CRLF (Carriage Return + Line Feed)
- The two-character sequence \r\n used as the standard line ending on Windows. Mixing it with plain LF text can cause display glitches.
- Blank line
- A line that contains no characters. It's normally used to separate paragraphs, but copy-pasting can leave behind several in a row by accident.
- Normalization
- The process of converting text that mixes different line endings into a single consistent one so it can be processed reliably. This tool normalizes everything to LF internally before applying the chosen mode.
Frequently Asked Questions
\r\n (Windows) and \n (Unix/Mac) line endings before processing.\n (LF) when its value is read, so the original line ending is already lost by the time the text arrives. The output side does use exactly the line ending you select, so conversion itself works reliably. To detect the line ending of an original file, use the file-based character encoding and line ending converter, which reads the raw bytes directly.
Side Note — How mismatched line endings cause invisible bugs
Text files mainly use one of two line-ending conventions: LF (\n) on Unix/Linux/macOS, and CRLF (\r\n) on Windows. Older Mac OS versions (pre-OS X) even used a lone CR (\r). These differences still cause real headaches today, such as a Windows-authored text file gaining stray characters when read on a Linux server.
Most requests for "removing line breaks" trace back to text copied from a PDF or Excel column: what looks like a single flowing sentence on screen was actually saved with hard line breaks at each visual wrap point. The paragraph looks clean until the moment you copy it, at which point a flood of embedded line breaks comes along for the ride.
This tool is the exact inverse of the Line Break tool, which inserts a line break every N characters. That tool exists to wrap a long line for readability; this one exists to undo accidental wrapping and restore text to the single sentence or paragraph it was always meant to be.